i liked his font it was easy on the eyes to read.

What people should notice is that the unever aging issue may be an issue for several people out there but I can't imagine being a problem for me.

100.000h for plasma and "only" 30.000 for OLED? Are we crazy? At my current peak rate of 2h of TV usage every day, it would took 137 years for plasma and 41 years for oled to reach half brightness. Let's put an EXTREME case on the table. Let's say 6h every day. In this case it would take 45 and 14 years respectively.

What's even better is than most people in this forum that complain about OLED's short lifespan are not holding their sets at home more than two or three years. I accept the short lifespan point for my mother, whose tvs last 20 years, but not for the supa-freaks here, always with cutting-edge technology in the living room.

Let's accept it, most of the people in this forum only care about tvs lifespan when they need something to complain about.

What people should notice is that the unever aging issue may be an issue for several people out there but I can't imagine being a problem for me.

100.000h for plasma and "only" 30.000 for OLED? Are we crazy? At my current peak rate of 2h of TV usage every day, it would took 137 years for plasma and 41 years for oled to reach half brightness. Let's put an EXTREME case on the table. Let's say 6h every day. In this case it would take 45 and 14 years respectively.

What's even better is than most people in this forum that complain about OLED's short lifespan are not holding their sets at home more than two or three years. I accept the short lifespan point for my mother, whose tvs last 20 years, but not for the supa-freaks here, always with cutting-edge technology in the living room.

Let's accept it, most of the people in this forum only care about tvs lifespan when they need something to complain about.

Yes I totally agree. I made a point about this in another thread discussing the difference between plasma and LED TV life. Basically, the plasma people were saying that 50000 for LEDs is shorter than the 100000 for plasma. I mean, 50K hrs is like 17yrs @ 8hrs/day viewing. That is way more than enough as like you said people don't even keep TVs that long on this site.

Yes I totally agree. I made a point about this in another thread discussing the difference between plasma and LED TV life. Basically, the plasma people were saying that 50000 for LEDs is shorter than the 100000 for plasma. I mean, 50K hrs is like 17yrs @ 8hrs/day viewing. That is way more than enough as like you said people don't even keep TVs that long on this site.

LED at 50000 hours will be brighter than Plasma at 0 hours, so those time to half brightness values can be quite misleading.

LED at 50000 hours will be brighter than Plasma at 0 hours, so those time to half brightness values can be quite misleading.

Once properly adjusted and calibrated the difference is minimal as far as brightness goes. For the few that enjoy torch mode, retina burn will effect the picture more than half brightness will. :D

Once properly adjusted and calibrated the difference is minimal as far as brightness goes. For the few that enjoy torch mode, retina burn will effect the picture more than half brightness will. :D

Mwhahaha burning eyes of doom :D :P

In any case, people generally hunting for 100k hour lifespan (or more) are probably those who leave their TV on for 24 hours a day straight.

At that rate (24 hrs.x365 days), it will take 10-11 years to reach that mark........though that is just half-brightness (and doesn't mean that the TV will automatically become disfunctional).

Well, different strokes for different folks but for me (in my personal case), I don't think I've ever even reached a case where the TV was on for more than 8 hours at any given time.

So if OLED were at 24000 hours and I divide that at 8 hours a day, then the TV would last me for more than 8 years..........if I decided to buy an OLED now.

Just a theoretical example (though this obviously varies between individuals)

Once properly adjusted and calibrated the difference is minimal as far as brightness goes.

Both displays calibrated for bright room viewing:

Pioneer KURO new 20fTL, after 60k hours 10fTL. (Pioneer has 60k hours lifetime)
LED new 150fTL, after 60k hours 75fTL.

There's almost eightfold difference in brightness.

Yes I totally agree. I made a point about this in another thread discussing the difference between plasma and LED TV life. Basically, the plasma people were saying that 50000 for LEDs is shorter than the 100000 for plasma. I mean, 50K hrs is like 17yrs @ 8hrs/day viewing. That is way more than enough as like you said people don't even keep TVs that long on this site.

It's apparently a d*ck comparison of some kind so don't take it too seriously.

I'd also be thankful if anyone could point me to some confirmation on the 100.000 hrs the plasma makers claim. I've only seen statements from the companies themselves and they are the ones wanting to sell us their products.

bye
Benny42

Well, isn't LCD inorganic as it is now? So if I'm assuming ILEDs are essentially man-made chemicals that can light up when a current is passed through them?It is counterintuitive thanks to the food and agricultural industries but the term 'organic' with regards to materials science usually means it is man-made. It is more likely that 'inorganic' materials are naturally occurring substances.

What people should notice is that the unever aging issue may be an issue for several people out there but I can't imagine being a problem for me.

100.000h for plasma and "only" 30.000 for OLED? Are we crazy? At my current peak rate of 2h of TV usage every day, it would took 137 years for plasma and 41 years for oled to reach half brightness. Let's put an EXTREME case on the table. Let's say 6h every day. In this case it would take 45 and 14 years respectively.

What's even better is than most people in this forum that complain about OLED's short lifespan are not holding their sets at home more than two or three years. I accept the short lifespan point for my mother, whose tvs last 20 years, but not for the supa-freaks here, always with cutting-edge technology in the living room.

Let's accept it, most of the people in this forum only care about tvs lifespan when they need something to complain about.Knowing the operatioin mechanism of PDP or OLED makes the lifespan number usefull at predicting burn-in susceptibility. For those who complain about Plasma burn-in there is little chance of them embracing OLED as the next gen display IMO.

Yes I totally agree. I made a point about this in another thread discussing the difference between plasma and LED TV life. Basically, the plasma people were saying that 50000 for LEDs is shorter than the 100000 for plasma. I mean, 50K hrs is like 17yrs @ 8hrs/day viewing. That is way more than enough as like you said people don't even keep TVs that long on this site.If you are going to dismiss any and all lifetime numbers as irrelevant than you should also dismiss any discussions on burn-in as well. Which is reasonable IMO.

It is counterintuitive thanks to the food and agricultural industries but the term 'organic' with regards to materials science usually means it is man-made. It is more likely that 'inorganic' materials are naturally occurring substances.

Actually "organic" just means that is is a compound containing carbon. That is it. It has nothing to do with "man-made" or "natural".

OLED is basically light emitting plastic that contains carbon chains. It doesn't mean that the TVs are grown on special trees or something.

If you are going to dismiss any and all lifetime numbers as irrelevant than you should also dismiss any discussions on burn-in as well. Which is reasonable IMO.

Sure. I don't consider the liftime numbers when I buy a TV, I know it's probable something else breaks before the panel gets too dim so I don't care, and we all should not care :-)

Discussions on burn-in should have finished long time ago since current plasmas does not suffer from burn-in at all.

For me the dealbreaker is the upscaling, the color accuracy, the motion handling and the phosphor trails. Everything else may be a pro or a con, but I can live with them all.

To sum up: The perfect TV doesn't exist, and certainly there are aspects much more decisive than the lifetime figures.

Both displays calibrated for bright room viewing:

Pioneer KURO new 20fTL, after 60k hours 10fTL. (Pioneer has 60k hours lifetime)
LED new 150fTL, after 60k hours 75fTL.

There's almost eightfold difference in brightness.

And it's funny how plasma people like to stress that blacks are more important than brightness/colors. I mean, seriously, I like good black levels, but if your TV is not vibrant with lively colors and brightness, it will suck. I don't recall ever seeing a movie that is one black frame to the next. So if your colors are dull, what's the point of the awesome black levels?

Actually "organic" just means that is is a compound containing carbon. That is it. It has nothing to do with "man-made" or "natural".

OLED is basically light emitting plastic that contains carbon chains. It doesn't mean that the TVs are grown on special trees or something.Yes of course, I was mearly addressing the posters comment with regards to "man-made". And there is no arguing that the vast majority of organic compounds in materials science are in fact "man-made" even though marketing of the term "organic" tends to suggest it is natural.

And no, OLED does not have to be a plastic. SM OLED is not plastic? Do you think all organics are polymers?

OLED does not have to be a plastic. SM OLED is not plastic? Do you think all organics are polymers?
If you have ever been in a fab that produces semiconductors or LCD panels it is hard to think of anything there as "Organic". I think the term itself has been co-opted by advertisers to mean green. If you go with the traditional meaning, gasoline is organic.

Inorganic Light Emitting Diode (or something like that).

We have them, they're called LED's, silicon based...invented by the russians in the late 50's.

. SM OLED is not plastic? Do you think all organics are polymers?

No.

Speaking of OLED devices an OLED screened portable game player was just released:

http://www.engadget.com/2009/05/14/gamepark-gp2x-wiz-gaming-handheld-now-available-for-real/

Both displays calibrated for bright room viewing:

Pioneer KURO new 20fTL, after 60k hours 10fTL. (Pioneer has 60k hours lifetime)
LED new 150fTL, after 60k hours 75fTL.

There's almost eightfold difference in brightness.

Hmmm, that's about 27 years for my plasma. Guess I only have 24 more years to enjoy it.

Will you be using an spf of 40 or 50 with that 150ftl? Just make sure you don;t lose the Ray Bans :D

Bottom line is that very few if any will ever reach that stage and have replaced the set long before it ever becomes an issue. :-)

No.

Speaking of OLED devices an OLED screened portable game player was just released:

http://www.engadget.com/2009/05/14/gamepark-gp2x-wiz-gaming-handheld-now-available-for-real/

Oh no! I forgot to order the GP2X Wiz (2.8" QVGA OLED)!!! :eek::eek::eek: My first OLED display must be obtained! Time to see what all the old retro console games look like on an OLED! ;)

It's a small unit but also has a small price-tag. A good way to preview the optical characteristics of a larger OLED screen.

Oh no! I forgot to order the GP2X Wiz (2.8" QVGA OLED)!!! :eek::eek::eek: My first OLED display must be obtained! Time to see what all the old retro console games look like on an OLED! ;)

I just got a Wiz.

It has perfect emulators of Genesis and Sega CD and MAME acrade emu (up to a point mostly 80s and early 90s games, it won't play Ridge Racer or Virtua Fighter), and very good SNES.

The old arcade titles like Pac-Man etc have alot of black in them so it is a good test. I can say this, it is like having an arcade machine in your pocket. The black level is amazing, all that you see are the graphics, no lousy LCD backlight glow that would wash out. In a dark room I can't tell where the screen stops and the bezel begins, true bezel blacks. While the DS is nice and everything for retro this Wiz screen looks fantastic!

Vector games (Asteroids, Tempest Defender etc) look better On the Wiz than I am used to seeing in years. They look just like you are playing them on a mini RGB CRT. I have played those vector games on handhelds with LCDs and they always tended to get drowned out by the LCD backlight glow. On the Wiz the vectors seem to pop out of the screen. Starfields in games now look incredible. Of course there is no ghosting or smearing like on an LCD either. The only negative is that in solid colors you see what looks like fine grain. It is not real bad and I imagine it is due to the fact that they aren't going to put a $300.00 top tier screen in a pocket game.

I have to admit, if they perfect OLED, LCD is dead. I really hope they start producing some decent sized OLED TVs. I will never look at an LCD or plasma again.

....I have to admit, if they perfect OLED, LCD is dead....

As much as I look forward to OLED, I must disagree with this statement (maybe). For the vast majority of people, the current crop of LCD TVs is quite sufficient. They won't discern any improvements, or pay for them. So they'll buy mostly on price.

However, if by "perfect" you mean they also undercut the LCD price, then I'm all with you.

Sad day. But hopefully enough of us will be willing to pay for quality, they'll be able to keep higher end HDTVs in production.

For the vast majority of people, the current crop of LCD TVs is quite sufficient. They won't discern any improvements, or pay for them. So they'll buy mostly on price.


Even the average Joe will notice that LCDs have viewing angle problems that OLED sets do not. Whether they will be willing to pay the price premium for that is another matter.

The average joe may be kind of ignorant but it's not blind. Unless budget is the ONLY factor when buying a TV, once OLED have competitive prices, it's going to destroy the market for both LCD and plasma.

We don't know WHEN it's going to happen, but we know it's going to happen eventually.

Even the average Joe will notice that LCDs have viewing angle problems that OLED sets do not. Whether they will be willing to pay the price premium for that is another matter.

Hmmmm... the only very few reports i have read of people actualy seeing sonys oled TV were quite disapointed with the viewing angles.

Hmmmm... the only very few reports i have read of people actualy seeing sonys oled TV were quite disapointed with the viewing angles.
I think you're mistaken. I've looked at the XEL-1 from all angles and it doesn't drop off at all. CNET and other reviews agree: http://reviews.cnet.com/oled/sony-xel-1-oled/4505-13948_7-32815284.html

I think you're mistaken. I've looked at the XEL-1 from all angles and it doesn't drop off at all. CNET and other reviews agree: http://reviews.cnet.com/oled/sony-xel-1-oled/4505-13948_7-32815284.html

The "HDGuru" placed the XEL-1 under excessive scrutiny (over critical) to try and find whatever "flaws" he could. One of the things mentioned was that his equipment read that the light level appears to decrease on extreme off angles... not that the color inverts or does other nasty things like LCD... However, from my several hours with the XEL-1, viewing angle concerns over this first to market OLED HDTV are no greater than any PDP.

Anyways, small devices that use LCD displays, such as the next iPhone, GP2X, next PSP, PMPs, and many other phones are already being replaced by OLEDs... TVs will follow, it's just a matter of time. :p

I have a 52" Samsung LCD (650) with probably better viewing angles than my CRTs. And a small Sharp LCD with viewing angles almost as good.

SOME LCD TVs have been built with good viewing angles. But you pay for such.

I'm just as eager for OLED as the next fellow, but I suspect most folks just aren't that picky. Unless OLED is close to LCD prices, it won't replace LCD. I just sure hope it'll be a major presence in the market.

One of the things I'm worried about after reading that HDGuru review is that OLED TV producers may be tempted to artifically limit the saturation of the colour green, if it looks 'unnatural'. I'm not much of an expert on these things, but it would seem that instead of limiting the capability of how saturated the green could get for OLED, it would make FAR more sense to tone down the green component in the *original picture information*.

Of course, content providers need to make their content look decent on TVs with less colour saturation capability (e.g. LCD). But that in turn will hurt the potential for displays that are capable of more saturation.

Does this post make sense?

It makes sense but if it doesn't make dollars they'll ignore your hollers.

I suppose the same can be said for the refresh rate too.

It seems like the classic chicken and egg scenario - the content needs the hardware to support genuine 100fps rates before the content uses it too, and the hardware needs the content to genuinely run at that rate before they bother going to the expense of making the hardware capable.

Still, I suppose the same goes for HD content over SD, and that worked out okay, so there is hope. Just gotta make people aware of higher refresh rates (gradually working its way into the public mind), and now, higher saturation capability.

http://www.akihabaranews.com/en/news-18174-Seiko+Epson+Enables+Uniform+Light+Emission+for+Big-Screen+OLED+TVs.html

Seiko Epson Enables Uniform Light Emission for Big-Screen OLED TVs

37” OLED TV soon a reality! Seiko Epson successfully establish an inkjet technology enabling a uniform deposit of Organic material in order to build up large OLED Panel.

Seiko Epson Corporation ("Epson", TSE: 6724) today announced it has established inkjet technology that enables the uniform deposition of organic material in the production of large-screen organic light-emitting diode (OLED) televisions. The new technology represents a major step toward the realization of 37-inch and larger full-HD OLED TVs by resolving the uneven layering that had previously been an issue with the inkjet method.

OLED televisions are the odds-on favorite to supplant current technologies as the next generation display. Offering outstanding viewing characteristics, including high contrast, wide viewing angle and fast response time, OLED TVs are also lightweight, ultra-thin, and have low power requirements. A major roadblock preventing mass production of large-screen OLED TVs has been the lack of a technology capable of reliably forming uniform organic layers on large substrates. Vacuum thermal evaporation (VTE), currently the most widely used method of depositing organic materials, is surrounded by technical hurdles that have prevented it from solving the layer uniformity issue and making the jump to mass production of large panels. An inkjet process that deposits organic material in liquid form has long been viewed as the ideal alternative.

Epson has recently developed the long-awaited solution in the form of an OLED display fabrication process that leverages the company's proprietary Micro Piezo inkjet technology to achieve markedly greater accuracy in organic material deposition than the conventional technology. The process has been used in trial production to fabricate a highly uniform prototype panel. Extremely uniform layers (volume error < 1%) are achieved by precisely controlling the selection and ejection of multi-size droplets of ink material on a substrate so that only the required volume of material is deposited. Epson's technology dramatically improves both quality and throughput and brings the advent of large-screen OLED TV a significant step closer to realization.

"Large-screen OLED TVs are the future of displays, and Epson is committed to contributing to the transition to volume production through research and development projects involving inkjet fabrication technologies," stated Satoru Miyashita, General Manager of Epson's OLED Development Center.

Details about this technology will be presented at SID 2009, the Society for Information Display's international symposium, seminar and exhibition, to be held in San Antonio, Texas from June 2. Epson will exhibit a 14-inch OLED display having resolution equivalent to a 37-inch full-HD display. The prototype display was trial-manufactured using Epson's inkjet process.

That's very big news in the oled world. It's the very first step towards cheap oled manufacturing. In fact, it's predicted that once this inkjet technology is performing well and accurately, the manufacturing costs of OLED will be lower than LCD or Plasma.

Great post vtms!

So, only another week until new OLED products/prototypes are shown at SID '09? :)

@twinbee - re: green... There are many R&D companies involved with development of materials used for OLED displays, such as Universal Display Corp. Point being that the display tech has plenty of room to evolve (e.g. use of phosphorescent OLED materials for R, G, and B). So, I'd imaging that the XEL-1 will be bested by new OLED displays in the coming years.

http://www.akihabaranews.com/en/news-18174-Seiko+Epson+Enables+Uniform+Light+Emission+for+Big-Screen+OLED+TVs.html

Seiko Epson Enables Uniform Light Emission for Big-Screen OLED TVs

Great post vtms,

I saw this on Anandtech this morning and the first thing I thought of was the likely reaction at AVSForum. I was gonna post the link, but you totally beat me to it.

As I haven't done much reading on OLED here lately, I have a related but probably noobish (nebbish???) question: has any progess been made on improving the life expectancy of these things? Last I heard, they didn't last anywhere near as long as plasma, LCD, et al. Anyone know?

Yours,

David

I'm suprised to see that Epson chose a 14" display to demonstrate the uniformity of their inkjet process. Lack of brightness uniformity is more easily visible on large displays. Perhaps they decided that proof of the small droplet size enabling high-resolution was more important.

I would have produced two displays, one small, the other large, to show both advantages of their system.

I'm suprised to see that Epson chose a 14" display to demonstrate the uniformity of their inkjet process.Could be intended for a laptop display. I'd pay quite a bit extra for that, as nearly all current laptops have absolutely terrible viewing angles.

Then again, the wide VA of OLED will decrease privacy. Those terrible viewing angles help to keep that guy next to you from seeing your pr0n :)

OEL breakthrough could slash panel costs (http://www.tgdaily.com/content/view/42567/135/)
25 May 2009

Tokyo, Japan - The price of organic electroluminescent looks set to fall after a research team based at the University of Tokyo revealed a method for making them more cheaply.

However, as with so many of these Japanese developments, practical applications are way down the line - it could be as long as five years before the method reaches volume manufacture.

OEL panels save energy, the colors are displayed faithfully and use organic materials that light up when current is applied. According to nikkei.net, the breakthrough made by professors Eihi Nakamura and Hayato Tsuji, have developed a new highly conductive organic material that could cut costs of manufacture by as much as 50 percent.

The prototype device the professors have created is tiny, according to nikkei.net, being only 2mm by 2mm square and 100-150mm thick. The prototype only has three layers, compared with current technology which can use as many as eight layers.

--------------------------------------------------------------------------------------

Forget plasma and LCDs: How the 3mm-thick, eco-friendly OLED is the TV of the future (http://www.dailymail.co.uk/sciencetech/article-1187309/Forget-plasma-LCDs-How-3mm-eco-friendly-OLED-TV-future.html)
26 May 2009

Once they were a must-have for every living room. But LCD and plasma TVs could be about to go the way of the cathode ray tube.

A new generation of super-slim screens will revolutionise home entertainment, according to the makers.

The OLED sets boast the thinnest TV screen created. At its narrowest point it is the width of a pound coin. And technological advances make the image far sharper than on LCD and plasma screens.


http://i.dailymail.co.uk/i/pix/2009/05/25/article-1187309-0515B222000005DC-64_468x420.jpg

The Sony XEL-1 is currently the only OLED TV on the market
and priced at £3,500. The screen is just 3mm thick

The Organic Light-Emitting Diode TVs have a contrast rating of 1,000,000 to 1, about ten times sharper than most LCD screens.

The first OLED TV to reach consumers was Sony's 11in £3,489 Bravia XEL, which went on sale this year.

Sony recently unveiled a new Walkman music and video player using an OLED screen to take on Apple's iTouch, while large-screen TVs, priced at £5,000, could be in shops by Christmas.

Panasonic is expected to launch a 40in OLED television next year and, according to online speculation, Apple will make a 15in Oled notebook on which users will be able to download movies.


http://i.dailymail.co.uk/i/pix/2009/05/25/article-1187309-0515B234000005DC-847_468x319.jpg

The Orgacon prototype is a flexible OLED lighting panel.
Companies such as Japan's NHK are working on creating bendy TVs

Apple is also rumoured to be planning to include an OLED screen in the next generation of iTouch and iPhone devices, which could be unveiled within days.

The OLED TV uses display technology based on organic materials which emit light naturally, once an electric charge is passed through them, rather than being back-lit as in LCD and Plasma screens.

This means the screens are much thinner and use up to 40 per cent less energy.

Dark areas appear black rather than dark grey because the relevant cells are simply switched off.


http://i.dailymail.co.uk/i/pix/2009/05/25/article-1187309-0515B240000005DC-594_468x349.jpg

OLED screens have a contrast rating of 1,000,000 to 1,
producing remarkably sharp images

Jim Clark, of retail analyst Mintel, predicted that OLED televisions would become the dominant television from 2012, when cheaper models arrive in the shops in time for the World Cup.

However, the screens have a limited lifespan. An OLED set will last 30,000 hours, about ten years for someone using the TV eight hours a day.

By contrast, a Sony LCD TV lasts twice that long.


http://i.dailymail.co.uk/i/pix/2009/05/25/article-1187309-0515DE5B000005DC-722_468x334.jpg

An OLED (organic light emitting diode) is 200 times smaller than a human hair.
Two layers of organic material are sandwiched between two conductors.
When a current passes from the cathode to the anode a bright light is
produced by the organic material

RESEARCHERS at Japan's public broadcaster NHK have developed a flexible OLED display that's 5.8in and can display moving images in colour.

The screen could one day be used as a light-weight television that could be rolled up after use.

It is currently in the early stages of development and the prototype on show at DHK shows lines that are stuck on one colour. This is because connections are vulnerable to breaking due to the flexible screen.

Seiko Epson doesn't expect mass production until 2015.

The company is currently eyeing small scale sample production of OLED screens using the new technology in around 2012 and mass production about three years after that. With next week's presentation at the SID conference it hopes to begin working with other companies in the industry to push the technology forward.


article link (http://www.pcworld.com/article/165472/seiko_epson_works_towards_printable_bigscreen_oleds.html)

Microsofts Zune HD will use an OLED display (http://www.zune.net/en-us/mp3players/zunehd/)

"Get quick and instant access to your content with multi-touch navigation. With a 3.3 inch screen and vivid 16:9 OLED display (480x272 resolution), premium entertainment is at your fingertips."

http://assets.zune.net/en-us/zune/zunehd/img/zuneHD.jpg

Hello! :)
I'm sorry, I'm sure this information has come out before, but this is a very long thread and I just wasn't able to find it - and probably wouldn't without spending quite a lot of time. So I hope you don't mind my asking:

Will OLED offer significant advantages in terms of motion resolution over both LCD and plasma? Is OLED completely equal to CRT in terms of black level? Which is to ask - phrasing it more precisely - even though OLED can, I gather, display a true black like CRT can, can the pixels comprising the display go from lit to black and back again as quickly as CRT, or is there a delay like there is with LCD?

Thank you!

Hello! :)
Will OLED offer significant advantages in terms of motion resolution over both LCD and plasma? Is OLED completely equal to CRT in terms of black level? Which is to ask - phrasing it more precisely - even though OLED can, I gather, display a true black like CRT can, can the pixels comprising the display go from lit to black and back again as quickly as CRT, or is there a delay like there is with LCD?

- Black levels in OLED are just black. Zero light.
- Response times of pixels are below 1ms which is faster than CRT (CRT had phosphor lag too! :P)

In picture quality, just imagine an OLED as a flat panel CRT. Besides the fixed resolution and the deinterlacing necessary for interlaced sources, both are comparable.

It's just that OLED weights about 7382518923879 times less and consumes 712385575892 times less at the same resolution.

Anyway... it's still a long way to go :P

Besides the fixed resolution and the deinterlacing necessary for interlaced sources, both are comparable.

You can make OLED act as an interlaced TV, thus no deinterlacing required.

OLED response time is measured in microseconds.

Current generation LCD is measured in milliseconds.

Next-Gen LCD (Blue Phase) is measured in microseconds.

But these numbers aren't addressing the real issue which is hold times for active matrix displays.



OLED TV's will be active matrix just like LCD. Each frame will have a hold time. So far OLED displays like the Sony XEL-1 have a hold time the same as a 120hz LCD panel.

For good motion handling on a active matrix display low hold times are needed. Of course if you lower the hold time the brightness of the panel will decrease because each frame is being shown for a shorter duration. With LED rear lit LCD displays they can just double the amount of LED light clusters to make up for the lower hold times.

As OLED technology improves it'll get brighter allowing them to lower the hold times.

LCD with rear lit LED will probably be the "active matrix" speed kings for a while.

Microsofts Zune HD will use an OLED display (http://www.zune.net/en-us/mp3players/zunehd/default.htm)

"Get quick and instant access to your content with multi-touch navigation. With a 3.3 inch screen and vivid 16:9 OLED display (480x272 resolution), premium entertainment is at your fingertips."

http://assets.zune.net/en-us/zune/zunehd/img/zuneHD.jpg

Maybe that is when I dump the iPod touch. I like it but the black level on the Apple LCD is abysmal. The best it can to is a medium hazy grey.

OLED response time is measured in microseconds.

Current generation LCD is measured in milliseconds.

Next-Gen LCD (Blue Phase) is measured in microseconds.

But these numbers aren't addressing the real issue which is hold times for active matrix displays.



OLED TV's will be active matrix just like LCD. Each frame will have a hold time. So far OLED displays like the Sony XEL-1 have a hold time the same as a 120hz LCD panel.

For good motion handling on a active matrix display low hold times are needed. Of course if you lower the hold time the brightness of the panel will decrease because each frame is being shown for a shorter duration. With LED rear lit LCD displays they can just double the amount of LED light clusters to make up for the lower hold times.

As OLED technology improves it'll get brighter allowing them to lower the hold times.

LCD with rear lit LED will probably be the "active matrix" speed kings for a while.

But... I saw a videoreview of a XEL-1 and there was visible flicker on the screen, so hold times can not be that long...

But... I saw a videoreview of a XEL-1 and there was visible flicker on the screen, so hold times can not be that long...


According to Tech-On regarding the XEL-1

Pseudo-Impulse Drive
Another innovation to make it easier to utilize OLED panels in the TV is the adoption of a pseudo-impulse drive. Our analysis showed that a black screen 6ms to 7ms long is inserted into every frame (about 16.7ms).

Pseudo-impulse drive is a technique to simulate an impulse drive, like that used in cathode ray tube (CRT) TVs. It helps relieve the retinal afterimage causing blurriness in human eyes, improving apparent motion display performance. It is becoming widely used in liquid crystal display (LCD) TVs where motion display is a problem.


http://techon.nikkeibp.co.jp/article/HONSHI/20080226/148048/


If the screen is black for "6ms to 7ms", the hold time is 10ms - 9ms. A 120hz LCD has a hold time of 8.1ms which is better than the XEL-1.

If the screen is black for "6ms to 7ms", the hold time is 10ms - 9ms. A 120hz LCD has a hold time of 8.1ms which is better than the XEL-1.

That depends. How long is the screen black for a 120Hz LCD cycle? I guess it needs to do frame interpolation from 60 to 120 Hz to get an artificially shorter hold time, but frame interpolation introduces a whole new set of problems/artifacts (there are enough topics about that).

ferro, Brimstone-1, and Daviii...

The XEL-1 does not have 120Hz frame interpolation (i.e. no MotionFlow).

Anyways, you guys should really track down a XEL-1 on display and play with the picture settings. The XEL-1 is a remarkable display! All of the Sony Style stores should have them on display as well as Best Buy locations with Magnolia Home Theatre sections. The Lynnwood, WA Best Buy has one on display connected to their QAM cable setup (used by most TVs in the store), looks superb even with 480i OTA channels.

I like the psuedo impluse drive on the XEL-1... I wish black frame insertion was enabled for game modes on LCDs... maybe in '10 on the larger OLEDs :p

ferro, Brimstone-1, and Daviii...

The XEL-1 does not have 120Hz frame interpolation (i.e. no MotionFlow).

Of course not, I was talking about how a 120Hz LCD can artificially decrease hold times by using frame interpolation.

That depends. How long is the screen black for a 120Hz LCD cycle? I guess it needs to do frame interpolation from 60 to 120 Hz to get an artificially shorter hold time, but frame interpolation introduces a whole new set of problems/artifacts (there are enough topics about that).

Black Frame Insertion and Frame Interpolation are different things.

Black Frame Insertion is helping reduce the hold time. It is just turning to frame black.

Frame Interpolation is designed for 24p material and adding new frames to make the material look like it was filmed at a higher frame rate.


Hence even plasma display (with 72hz) can have Frame Interpolation for 24p Blu-Ray movies, but it won't do anything to reduce the hold time. Although Plasma isn't a active-matrix technology like LCD.


There is no reason why an OLED display like the XEL-1 can't have Frame Interpolation if they want to include the processors to do it.

Black Frame Insertion and Frame Interpolation are different things.

You mentioned 120Hz LCD. Black Frame Insertion and 120Hz LCD are different things.

Seiko Epson has made a nice inkjet deposition breakthrough for OLED TV's larger than 37 inch screens. This is what they do best anyway.

http://www.dailytech.com/Seiko+Epson+Announces+OLED+TV+Breakthrough/article15231.htm

If the screen is black for "6ms to 7ms", the hold time is 10ms - 9ms. A 120hz LCD has a hold time of 8.1ms which is better than the XEL-1.

Yes and no! The hold time in a 120Hz LCD is shorter, but the XEL-1 is still better. If the black frame insertion makes the SAH blur dissapear in the OLED display (which is reasonable giving "6ms to 7ms" per frame is > 30% of the display time) the pixel response time makes the OLED to have no blur at all while the LCD will be a bit blurry which ANY refresh ratio because of its own nature, and of course it will need motion interpolation, which makes the image to look unnatural while the OLED delivers perfect motion handling keeping the original look and feel.

OLED displays with an accurate black frame insertion are technically the best solution for clarity and motion handling. It's like plasma but without phosphor lag. Which is pretty close to perfection IMO.

http://www.oled-info.com/engadget-thinks-zune-hds-oled-absolutely-stunning
The team over at Engadget gets to play around with a pre-production Zune HD, and they actually love the device. Here's what they say about the display: "The OLED screen looks absolutely stunning -- even at severe viewing angles, colors were super bright, edges were crisp, and text looked beautiful."

http://www.oled-info.com/files/images/zune-hd-playing-movie.img_assist_custom.jpg
Microsoft Zune HD

The Zune HD is set for a fall release.

:):):)

black frame insertion and interpolation both cut hold time in an effort to reduce motion blur (its their main purpose). you can either erase the frame or add new frames. either way any single frame doesn't linger on the retina too long (the cause of hold type motion blur).
Oled will not be able to use black frame insertion in bigger sizes (lcd already tried this) so it will be interesting to see if interpolation comes along. you have to reduce the hold time and do it without flicker.

Motion Interpolation on low frame rate material like 24 fps DVD & Blu-Ray discs and 30 fps broadcasts helps prevent the same frame being repeated. Instead of repeating a frame, the technology creates an artifical frame that is an average between two frames.


If a frame is repeated that is the fault of the source material. That isn't a reflection on the hold time of the display technology.

Oled will not be able to use black frame insertion in bigger sizes (lcd already tried this) so it will be interesting to see if interpolation comes along. you have to reduce the hold time and do it without flicker.From what I have read LCD backlight scanning works well and some of the high end LCDs coming out this year will use it (such as the Toshiba ZV650 series (http://www.tacp.toshiba.com/news/newsarticle.asp?newsid=210)). Also using a duty cycle under 100% worked well with the Sony XEL-1 OLED Digital TV (http://www.avsforum.com/avs-vb/showpost.php?p=15999691&postcount=911).

:eek: wow!

I have learned so much just by reading this thread on OLED TV's. You guys defenitely know what your talking about!

Keep it up :cool:

From what I have read LCD backlight scanning works well and some of the high end LCDs coming out this year will use it (such as the Toshiba ZV650 series (http://www.tacp.toshiba.com/news/newsarticle.asp?newsid=210)). Also using a duty cycle under 100% worked well with the Sony XEL-1 OLED Digital TV (http://www.avsforum.com/avs-vb/showpost.php?p=15999691&postcount=911).

afaik all lcds with backlight scanning must use it in tandem with 120hz interpolation because the higher frame rate is needed to avoid scanning flicker which occurs at normal frame rates. the first lcds using backlight scanning alone had very bad flicker mentioned in their reviews. advancements since then have moved to scanning + 120hz (to avoid flicker is a good assumption).

even though the XEL-1 using BFI (or scanning?) has noticeable flicker, i think sony got away with it because of the small viewing area. it should be a different story though with larger sets - wider viewing angles and increased brightness should make flicker painful just as with lcd unless minimal scanning is used (i.e. minimal blur reduction) or 120hz interpolation to raise the frame rate.

so that's my take, you either have flicker or hold type blur as long as the frame rate stays low. i don't think the fastest pixel response in the world can change that.

I'm confident that more advanced pseudo-impulse drive implementations will be used in newer and larger OLEDs to elimate any observable flicker and still preserve full motion resolution. So, perhaps Sony's next OLED display will feature Impulse Drive 240Hz as part of the Bravia Engine XEL!!! :eek: :cool:

I'm confident that more advanced pseudo-impulse drive implementations will be used in newer and larger OLEDs to elimate any observable flicker and still preserve full motion resolution. So, perhaps Sony's next OLED display will feature Impulse Drive 240Hz as part of the Bravia Engine XEL!!! :eek: :cool:

I am not sure what they are doing but the GP2X Wiz OLED has no flicker at all. I have the device so I can tell you first hand.

Maybe because the screen is small they can get away with it somehow?

Improved Half Lives

http://techon.nikkeibp.co.jp/english/NEWS_EN/20090529/170944/

Improved Half Lives

http://techon.nikkeibp.co.jp/english/NEWS_EN/20090529/170944/

Nice nice. Keep 'em coming :)

http://www.oled-info.com/samsung-announced-production-ready-141-oleds-laptops-and-31-oled-tvs
06/01/2009

OLED HDTV OLED monitor OLED production OLED TV Samsung
Samsung Mobile Displays announced 14.1" and 31" OLED TV panels, using what they call Fine Metal Mask (FMM) technology. Those panels are 'ready for production'.

The 14.1" WXGA is aimed for laptop computers. It's got a 1366x768 resolution, 200cd brightness, color gamut of 107% NTSC and a 1,000,000:1 contrast ratio. The whole panel is just 2.7mm thick.


The 31" FHD (1920x1080) TV panel is using LTPS, and also has 200cd brightness, color gamut of 107% NTSC and a 1,000,000:1 contrast ratio. The panel is thicker at 8.9mm.

The last display is a 40" FHD OLED TV, with pretty much the same features as the 31" TV. This one is not 'ready for production', yet.

SMD has updated their web site (http://www.samsungsmd.com/eng/main.html), with lot's of details on the new panels, and also other AMOLED (smaller ones for mobile displays), as well as 'future OLEDs' - flexible and transparent ones.

:):):)

Awesome to see close-to-production news like this coming along after having dreamed of replacing my CRT (PC) monitors with OLED tech for years. I've mainly been a lurker here, so thanks to everyone that has and continues to update this thread with relevant news and discussions!

I can't wait for my first match of Quake 3 on an OLED screen sometime in the next couple years, hopefully!

Large OLED TV's by the end of 2009 (http://hdtvorg.co.uk/news/articles/2009052501.htm)
25 May 2009

With Sony expected to launch a large OLED TV by the end of the year, followed shortly afterwards by Samsung's own 40in version early in the new year, 2010 is set to signal takeoff for this exciting new technology.

Looking like the first serious rival to Plasma and LCD technology, Sony have demonstrated an HD ready 21in OLED TV at the Flat Panel Display expo in Japan. The same screen is likely to be widely available to consumers by the end of this year.

OLED (Organic Light Emitting Diode) technology is based on organic materials which emit light naturally after an electrical charge is passed through them. OLED pixels generate their own light which brings a whole host of technological advantages. Every OLED prototype we have seen produces brighter, sharper images while using less power than any plasma or LCD TV.

Unlike Sony's existing 11in XEL-1 (960 x 540 resolution), their 21in OLED comes with an HD ready (1366 x 768) spec. Both screens share a 1,000,000:1 contrast ratio, although the 21in panel has an integrated tuner rather than the separate media box of the XEL-1. Despite the integrated tuner, the prototype panel comes in at an impressive 1cm deep.

The Korean electronics giant, Samsung, plan to offer a commercially available large OLED screen by 2010. The first OLED screens from Samsung are likely to be 14.1in and 31in or 40in models also demonstrated recently. Panasonic have recently announced that they will be producing a commercially available 40in OLED by 2011.

Sony's existing 11in Bravia XEL OLED TV is already on sale for £3,489 with their 21in offering likely to be a much more reasonable £5000 when it goes on sale at the end of the year.

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Samsung announced production-ready 14.1" OLEDs for Laptops and 31" OLED TVs (http://www.oled-info.com/samsung-announced-production-ready-141-oleds-laptops-and-31-oled-tvs)
1 June 2009


http://cache.gawker.com/assets/images/gizmodo/2009/06/oled-tv-samsung-31-inch.jpg


Talk of 14.1 and 31-inch OLED TVs from Samsung has been going on for some time now, but decent-sized units have not materialized on store shelves thus far. Hopefully, that will change soon as Samsung deems these new AM OLED sets "production ready."

The 31-incher is the first OLED display to boast full HD resolution (1920 x 1080). It also features a contrast ratio of 1,000,000:1, a color gamut of over 100% NTSC and a ultra-slim design of only 8.9mm. That's all well and good, but I will hold off on any enthusiasm until it transitions from "production ready" to plain "production." [BusinessWire (http://www.businesswire.com/portal/site/google/?ndmViewId=news_view&newsId=20090601005619&newsLang=en) via OLED Display (http://www.oled-display.net/smd-unveils-production-ready-oled-tvs-and-amoleds-at-sid-2009)]

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Samsung announced production-ready 14.1" OLEDs for Laptops and 31" OLED TVs (http://www.oled-info.com/samsung-announced-production-ready-141-oleds-laptops-and-31-oled-tvs)
1 June 2009

Samsung Mobile Displays announced 14.1" and 31" OLED TV panels, using what they call Fine Metal Mask (FMM) technology. Those panels are 'ready for production'.

The 14.1" WXGA is aimed for laptop computers. It's got a 1366x768 resolution, 200cd brightness, color gamut of 107% NTSC and a 1,000,000:1 contrast ratio. The whole panel is just 2.7mm thick.

The 31" FHD (1920x1080) TV panel is using LTPS, and also has 200cd brightness, color gamut of 107% NTSC and a 1,000,000:1 contrast ratio. The panel is thicker at 8.9mm.

The last display is a 40" FHD OLED TV, with pretty much the same features as the 31" TV. This one is not 'ready for production', yet.

SMD has updated their web site (http://www.samsungsmd.com/eng/main.html), with lot's of details on the new panels, and also other AMOLED (smaller ones for mobile displays), as well as 'future OLEDs' - flexible and transparent ones.

On OLEDs and motion blur: I've watched a 60 fps video of Doom II (using ZDoom, which allows for 60 fps) on my Cowon S9's AMOLED screen and I see motion blur. The movement of (totally unfiltered and close to the FP view) textures across the screen that are sharp on my CRT are blurred on the S9. However, the blur does not appear to be as bad as on my low-end Hanns-G JW199D 19 inch monitor. So, for those hoping (like me) that OLED would be the end of motion blur, this is bad news (assuming my senses are correct and the S9 is indicative of all AMOLED at 60 hz). And before anyone asks, yes, I am virtually (since I cannot verify it beyond my senses) 100% sure that the Cowon S9 can display 60 fps. As for my ability to tell the difference, I can easily tell if a media is around 60 fps or around 30 fps blindly (like with random commercials) and I've tried other 60 fps videos on the S9 of which I had a harder time seeing blur (up until I saw the Doom II video, I was thinking that perhaps the S9's AMOLED screen did not have motion blur).

However, aside from the motion blur, the screen on the S9 it is extremely high quality. Skin tones look very natural. Color overall looks great and covers the spectrum much better than standard LCD displays. Black levels are awesome, also - seeing all kinds of details in a really dark area of the screen is great, and having pure black be an absence of light is obviously ideal. I also love the uniformity of the screen due to the great viewing angles and no backlight (my LCD monitor has a painful amount of light bleed and crap viewing angles).

I'm still looking forward to OLED, but I'm no longer willing to pay as high a price for an AMOLED monitor (I play PC games a lot and don't watch much TV) if the S9's motion blur is indicative of what bigger screens will have. It will still be utterly superior to LCD, but CRT will continue to be the only display technology I know of that doesn't blur in motion - to my eyes, at least (I see plasma phosphor trails).

If AMOLED does indeed have motion blur problems, then hopefully manufacturers will make high-refresh-rate AMOLED TVs and monitors. They have obviously been doing so for a while with LCD TVs, but are just starting to with LCD monitors - there are 120 hz monitors made for 3D glasses, but they can be viewed in normal 2D mode in 120 hz. 120 hz is not enough, though, at least for LCD (yes, I realize LG has made a 240 hz and is making a 480 hz - I'd like to see both in person).

Maybe Laser TV is going to be "it."

On OLEDs and motion blur: I've watched a 60 fps video of Doom II (using ZDoom, which allows for 60 fps) on my Cowon S9's AMOLED screen and I see motion blur. The movement of (totally unfiltered and close to the FP view) textures across the screen that are sharp on my CRT are blurred on the S9. However, the blur does not appear to be as bad as on my low-end Hanns-G JW199D 19 inch monitor

Is it possible that the S9 is able to dislplay 60fps but it's not able to fully resolve all the resolution at that rate? Have you tried the same video at 30fps? If it looks fine at 30fps, it's a problem of the S9.

jf10928347, I don't mean to be insulting, but it sounds like you don't really know what you're talking about on a technical level. I'm not an expert on OLED, but from everything I've read on this thread and elsewhere, OLED will or will not suffer from motion blur based on its circuitry implementation specific to each screen model. I'm sure someone will elaborate, as you've taken a pretty broad, I think unjustified, shot at OLED tech.

jf10928347,

That was an interesting post actually. Like you, I originally thought that the frame rate and response rate was the be all and end all for defining blurring/smoothness, but as Tectonic is implying, there's another variable known as "sample and hold" where some black between each frame actually HELPS decrease blur, even though flicker is introduced (CRTs operate like this). Even if LCDs had an instant response rate (0ms) and ran at 60fps, motion blur would still be visible for this reason.

So I'm guessing (unless Davii has a point with the resolving of the resolution) that Cowon S9's AMOLED screen has basically no 'physical' motion blur, but has a 100% SAH rate (no black between each frame) - which is why there's 'subjective' blurring.

The good thing is though, is that not all OLED displays will have a 100% SAH rate (e.g. Sony's 11" TV has black insertion [similar to a CRT], so that's got no motion blur at all, though a little flicker is apparent as a result).

The only solution which would end flicker and motion blur forever more is for the display *and* source material (either through interpolation or inherently [preferable] ) to operate at more than 60fps.

jf10928347, I don't mean to be insulting, but it sounds like you don't really know what you're talking about on a technical level. I'm not an expert on OLED, but from everything I've read on this thread and elsewhere, OLED will or will not suffer from motion blur based on its circuitry implementation specific to each screen model. I'm sure someone will elaborate, as you've taken a pretty broad, I think unjustified, shot at OLED tech.It is well known in the literature that AMOLED is a sample and hold technology that exhibits the same hold type motion blur problem that LCD does. The sample and hold nature is there to extend the lifetime of the display while maximizing brightness. The XEL-1 implements a shorter duty cycle to try and overcome this blur effect but at the expense of lifetime and flicker.

Here is a little snippet from a Samsung paper on OLED technology.

Hanfeng Chen, Taehyeun Ha, Junho Sung, and Baikhee Han
SID Symposium Digest 39 472 (2008)

http://i222.photobucket.com/albums/dd126/xrox/OLED.jpg

Note: There is a simple way to mimick the blur performance of AMOLED using an LCD. Using a block scroll pattern where the identical pattern is continually replaced in each block location creates a motion tracking vector without any component of response time blur. 100% of the blur you observe is therefore created on your retina due to the sample and hold nature of the display.

Here's a great white paper by Charles Poynton:
http://www.poynton.com/PDFs/Motion_portrayal.pdf

It's not the newest, but the info is still relavent! :)

I stand partially corrected.

I think what we'll see is the implementation adjusting to market desires. CRT-like black frame insertion is ideal to me as a (hopeful) PC user. I would ideally run an OLED panel at 85hz+ (120+ would be nice) with black frame insertion between each frame to try to mimic a CRT's motion. The problem, if I've understood correctly, is that to the eye, brightness decreases as the "on" frame is made shorter in attempt to decrease the SAH effect. The actual brightness of the "on" frames has to be increased in order to be as bright as a constant-on implementation, which sacrifices lifespan. Also, if the source material is less than the refresh rate, there's really no point and you get an effect similar to SAH anyway. In the case of PC usage and gaming, I don't think this will be an issue, as many games (or at least the ones I care about) will output as many frames as your hardware is capable of rendering.

I know it gets old explaining things over and over again, but do I have a decent understanding here?

I stand partially corrected.

I think what we'll see is the implementation adjusting to market desires. CRT-like black frame insertion is ideal to me as a (hopeful) PC user. I would ideally run an OLED panel at 85hz+ (120+ would be nice) with black frame insertion between each frame to try to mimic a CRT's motion. The problem, if I've understood correctly, is that to the eye, brightness decreases as the "on" frame is made shorter in attempt to decrease the SAH effect. The actual brightness of the "on" frames has to be increased in order to be as bright as a constant-on implementation, which sacrifices lifespan. Also, if the source material is less than the refresh rate, there's really no point and you get an effect similar to SAH anyway. In the case of PC usage and gaming, I don't think this will be an issue, as many games (or at least the ones I care about) will output as many frames as your hardware is capable of rendering.

I know it gets old explaining things over and over again, but do I have a decent understanding here?IMO Yes...

Note that black frame insertion (BFI) essentially shortens the effective duty cycle and therefore makes it very susceptible to flicker even at 120Hz. A 120Hz display with BFI acts like a 60Hz display with a 50% duty cycle. Both will flicker similar to current plasma displays which have an effective duty cycle of 35-50% at 60Hz.

IMO OLED will take the route of LCD and use frame interpolation. Maybe they will have BFI and frame interpolation as switchable options.

CRT-like black frame insertion is ideal to me as a (hopeful) PC user.

CRT flicker is awful! Why would you want to recreate that experience?

The worst of CRT flicker is the interlacing. A progressive image switched on and off (like motion picture film) doesn't look nearly as bad.

The only solution which would end flicker and motion blur forever more is for the display *and* source material (either through interpolation or inherently [preferable] ) to operate at more than 60fps.


I would ideally run an OLED panel at 85hz+ (120+ would be nice) with black frame insertion between each frame to try to mimic a CRT's motion.


i'd like to see that passive matrix Oled monitor with high frame rate pc inputs (75-85hz min).

CRT flicker is awful! Why would you want to recreate that experience?

I can't really see any flicker in a CRT at 120hz. Barely even at 85hz. I'm impressed if you can. Usually I play Quake 3 at 140hz with vertical sync on and it's the smoothest gaming experience I've ever seen.

Would it be possible a 240Hz OLED with 75% duty cicle? IMO it would be high enough to eliminate flicker, but I'm not sure if it would be low enough to avoid blur... Any words on where the threshold for no-flicker+no-blur is?

Would it be possible a 240Hz OLED with 75% duty cicle? IMO it would be high enough to eliminate flicker, but I'm not sure if it would be low enough to avoid blur... Any words on where the threshold for no-flicker+no-blur is?

I believe we'll find out the real threshold once manufacturers start releasing new OLED TVs (not theory). :) So, it looks like CEDIA will be the next electronics show where more details in terms of when the next OLED TVs will be released, and if they flicker or blur.

Would it be possible a 240Hz OLED with 75% duty cicle? IMO it would be high enough to eliminate flicker, but I'm not sure if it would be low enough to avoid blur... Any words on where the threshold for no-flicker+no-blur is?This is good thinking. Instead of BFI, just shorten the intrinsic duty cycle at 120Hz or 240Hz and you improve motion handling. The problem is that as you increase the refresh rate you decrease the effective duty cycle.

For example, 240Hz with a duty cycle of 75% without any interpolation will produce an effective duty cycle close to 100% which does not help sample and hold blur all that much.

Assuming long life, very bright EL materials I would suggest the following drive methods

120Hz with <100% duty cycle per refresh
- this will produce a flicker rate of 120Hz which is well beyond most persons threshold
- SAH blur will be reduced a little bit

240Hz with BFI and <100% duty cycle per refresh
- BFI on every second refresh will produce a 120Hz flicker
- combination of BFI and short intrinsic duty cycle per refresh will reduce SAH significantly

This is good thinking. Instead of BFI, just shorten the intrinsic duty cycle at 120Hz or 240Hz and you improve motion handling. The problem is that as you increase the refresh rate you decrease the effective duty cycle.

For example, 240Hz with a duty cycle of 75% without any interpolation will produce an effective duty cycle close to 100% which does not help sample and hold blur all that much.

Assuming long life, very bright EL materials I would suggest the following drive methods

120Hz with <100% duty cycle per refresh
- this will produce a flicker rate of 120Hz which is well beyond most persons threshold
- SAH blur will be reduced a little bit

240Hz with BFI and <100% duty cycle per refresh
- BFI on every second refresh will produce a 120Hz flicker
- combination of BFI and short intrinsic duty cycle per refresh will reduce SAH significantly

Interesting stuff.

Question though: You mention it using 120hz/240hz (multiples of 60)

What about for PAL-centric systems which are multiple of 50 (like 100hz and 200 hz)???

The problem is that as you increase the refresh rate you decrease the effective duty cycle.

you lost me on that one...did you mean increasing refresh without interpoaltion increases sample and hold?

Question though: What about for PAL-centric systems which are multiple of 50 (like 100hz and 200 hz)???I would assume that to be the case.

you lost me on that one...did you mean increasing refresh without interpoaltion increases sample and hold?Sort of. I was trying to explain that increasing the refresh of a display that has a short duty cycle per refresh actually increases the effective duty cycle due to repetition of the frames.

60Hz display
75% duty cycle per refresh
60Hz signal
= effective duty cycle of 75%
= 60Hz flicker

120Hz display
75% duty cycle per refresh
60Hz signal
no interpolation
= effective duty cycle of 88%
= 120Hz flicker

240Hz display
75% duty cycle per refresh
60Hz signal
no interpolation
= effective duty cycle of 94%
= 240Hz flicker

If however you combine this idea with BFI

240Hz display
75% duty cycle per refresh
60Hz signal
no interpolation
BFI every second refresh (refresh-black-refresh-black = 1 60Hz frame)
= effective duty cycle of 69%
= 120 Hz flicker

240Hz display
75% duty cycle per refresh
60Hz signal
no interpolation
BFI every second refresh (refresh-black-refresh-black = 1 60Hz frame)
= effective duty cycle of 69%
= 120 Hz flicker

So, even in theory, OLEDs can have full motion resolution with a flicker/refresh that is well beyond human perception (120Hz refresh on my DP900u CRT gives absolutely no perceivable flicker). :):):)

OLED attains the vast reaches of a visual heaven heretofore beyond the eyes of today's J6P.

It's truly better than sliced bread and tastier too. OLED's got the slim and sexy shape that your wife/girlfriend could never attain - even with liposuction again!

The only detractors are secret LCD contractors... If your living room is a field of dreams, then an OLED TV is a home run!

It's truly worth any price to own something so perfectly nice.

OLED attains the vast reaches of a visual heaven heretofore beyond the eyes of today's J6P.

It's truly better than sliced bread and tastier too.

The only detractors are secret LCD contractors...

If your living room is a field of dreams, then an OLED TV is a home run!

It's truly worth any price to own something so perfectly nice.

I agree. And I'm sure at least the TV manufactures would like it because the manufacturing process is cheaper than any other technology used today and they will still charge more than they should and have a better profit margin than they do today.

The only downfall I see though, is that how will they make improvements in a great TV? I'm sure they don't like this aspect of it but OLED does offer many more solutions and possibilities.

Manufaturing cost of new tech is fairly minor compared to the cost of recouping the R&D and production line setup expenses - which is why new tech - even if it *should* be cheaper - always comes at a premium. Once initial expenditure of bringing the tech to market is more or less recouped, only then can customers really see the benefit of a cheaper manufacturing process.

Interesting stuff.

Question though: You mention it using 120hz/240hz (multiples of 60)

What about for PAL-centric systems which are multiple of 50 (like 100hz and 200 hz)???

Would that even apply in the HD world? Doesn't the rest of the world clock their HDTVs at 60, regardless of line frequency? And is there even a "50" Blu-ray spec?

Sort of. I was trying to explain that increasing the refresh of a display that has a short duty cycle per refresh actually increases the effective duty cycle due to repetition of the frames.

60Hz display
75% duty cycle per refresh
60Hz signal
= effective duty cycle of 75%
= 60Hz flicker

120Hz display
75% duty cycle per refresh
60Hz signal
no interpolation
= effective duty cycle of 88%
= 120Hz flicker

240Hz display
75% duty cycle per refresh
60Hz signal
no interpolation
= effective duty cycle of 94%
= 240Hz flicker

If however you combine this idea with BFI

240Hz display
75% duty cycle per refresh
60Hz signal
no interpolation
BFI every second refresh (refresh-black-refresh-black = 1 60Hz frame)
= effective duty cycle of 69%
= 120 Hz flicker

yes that's what i've seen.
i know those numbers are theoretical, but to add my own experience, motion resolution even at 50% duty cycle (120hz interpolated lcd) is still far cry from crt imo.

yes that's what i've seen.
i know those numbers are theoretical, but to add my own experience, motion resolution even at 50% duty cycle (120hz interpolated lcd) is still far cry from crt imo.

Perhaps Phosphorescent OLEDs (http://www.oled-info.com/universal-display-and-samsung-present-advances-highly-efficient-long-lifetime-green-ph-oleds) can eventually reach a CRT-like experience. Maybe a luminance of 1,000 or even 3,000 cd/m2 can allow for a reduced hold time?

that might allow liberal use of black frame insertion (by off-setting the diminished lifetime and brightness issues). but then what do you do about BFI flicker. we run in circles without raising the frame rate. i don't believe working within the current frame rate system will show Oled's potential in motion handeling. it held back crt, plasma (and now LCD) and it will hold back Oled - so waiting for my Oled pc monitor.

Universal Display and Samsung Present Advances in Highly Efficient, Long Lifetime Green PH-OLEDs (http://www.oled-info.com/universal-display-and-samsung-present-advances-highly-efficient-long-lifetime-green-ph-oleds)
4 June 2009

Universal Display and Samsung Mobile Displays present advances in green Phosphorescent OLEDs at SID. This new material will be used in both hand-held devices and OLED TVs, extending lifetime and efficiency. UDC's red materials are already used in Samsung's AMOLED displays, and it's likely that we'll see Samsung use their green materials as well.

The companies showed a highly-efficient, green UniversalPHOLED material that has been used in a top-emission PHOLED device architecture. Using this approach, they achieved two milestones. A green PHOLED with NTSC color at CIE(0.20, 0.73), high luminous efficiency of 110 candelas per Ampere (cd/A), and a low voltage of 3.6 V at 3,000 candelas per square meter (cd/m2) was achieved.

A second device structure using this green PHOLED material system also achieved an ultra-high luminous efficiency of 160 cd/A along with CIE(0.28, 0.69) and low voltage of 3.8 V at 3,000 cd/m2. These compare to a standard bottom-emission device with CIE(0.33, 0.62) and 52 cd/A using this same green PHOLED material system. Replacing the green fluorescent OLED material typically used today in an AMOLED with this new green PHOLED can result in a significant 37% power savings.

The operational lifetime for this green PHOLED material system is also very good. A bottom-emission device using this material system offers > 300,000 hours to 50% (extrapolated) and 15,000 hours to 90% of the initial luminance of 1000 cd/m2 (defined as LT90). With these top-emission devices, the LT90 lifetime is 28,000 hours and 6,400 hours, respectively, for the 110 cd/A and 160 cd/A devices.

Would that even apply in the HD world? Doesn't the rest of the world clock their HDTVs at 60, regardless of line frequency? And is there even a "50" Blu-ray spec?

I dunno

But I think some Euro-broadcasters (like BBC HD use 50 fps in their broadcasts). I'm just wondering if the 10 fps/hertz difference would be a cause of any concern (or not). Maybe xrox can answer this....

P.S.
Kudos to improvements to OLED technology from Uni/Samsung SDI :)

EDIT:
Oops, I guess xrox already answered that a while ago. My bad :(

that might allow liberal use of black frame insertion (by off-setting the diminished lifetime and brightness issues). but then what do you do about BFI flicker. we run in circles without raising the frame rate. i don't believe working within the current frame rate system will show Oled's potential in motion handeling. it held back crt, plasma (and now LCD) and it will hold back Oled - so waiting for my Oled pc monitor.

Flicker can be eliminated by repeating the same frame at a higher refresh rate (e.g. 120 HZ), or by adding interpolated frames. I would guess it's just a question of materials: develop the Red and Blue PHOLED materials with enough brightness and lifetime, and together with the Green PHOLED material referenced above you have the perfect display.

Ambipolar Organic Semiconductor Material Claims High Charge Mobility (http://techon.nikkeibp.co.jp/english/NEWS_EN/20090527/170807/)
28 May 2009


http://techon.nikkeibp.co.jp/english/NEWS_EN/20090527/170807/2AA.jpg

The benzodifuran derivative
announced in 2007 (left) and the
structure of new ambipolar CZBDF

http://techon.nikkeibp.co.jp/english/NEWS_EN/20090527/170807/2BB.jpg

The voltage and external quantum efficiency
characteristics (graph on the left) of homojunction OLED
devices with the intermediate layer doped with a dye, and
the emission of the device (picture on the lower right)

A Japanese research group claimed that it developed a new ambipolar organic semiconductor material with the "highest level" charge mobility as an amorphous material.

The material, "CZBDF," was developed based on a derivative announced by the research group, which is led by Tokyo University and the Japan Science and Technology Agency (JST), in 2007. The derivative has a mother nucleus of "benzodifuran," an annulated π-conjugated compound containing oxygen atoms. The benzodifuran derivative is an amorphous thin film p-type semiconductor material with a high hole mobility.

This time, the research group replaced the "amine" portion in the benzodifuran derivative with "carbazole" and realized the CZBDF ambipolar material with high charge mobility. Also, the group produced a homojunction OLED device with the use of CZBDF and succeeded in achieving EL emission by using both fluorescence and phosphorescence, as well as EL emission of three primary colors of blue, green and red.

The CZBDF amorphous thin film has a hole charge mobility of 3.7 x 10-3cm2/Vs and an electron charge mobility of 4.4 x 10-3cm2/Vs. Both has a high mobility and exhibited well-balanced values, the group said. These values were measured by using the time-of-flight (TOF) method (at a field intensity of 2.5 x 105V/cm).

Furthermore, the research group produced a homojunction OLED device by vacuum vapor deposition with the use of the newly developed ambipolar material CZBDF. Specifically, indium tin oxide (ITO) on a glass substrate is used as the positive electrode, and a 150-200nm-thick organic thin film and an aluminum (Al) metal (negative electrode) are sequentially formed on the positive electrode by vacuum vapor deposition.

Using CZBDF as a single host material, the organic thin film was subjected to p-type doping in the range of 30nm from the positive electrode by co-deposition with vanadium pentoxide (V2O5), which is an inorganic oxidant. Meanwhile, an area in the range of 20nm from the negative electrode is subjected to n-type doping by co-deposition with a reductant (metal cesium). This facilitated the charge injection and transport from the electrodes to CZBDF, the research group said.

To generate three primary colors, an intermediate layer (thickness: 50-100nm), which was doped with no oxidant or reductant, was doped with a blue or green fluorescent dye, or a red phosphorescent dye. The green fluorescent dye showed a high external quantum efficiency of 4.2% at a luminance of 60,000cd/m2.

According to the research group, the following characteristics of CZBDF were believed to have contributed to the emission of three primary colors by the newly developed OLED device and its high luminous efficiency. (1) It is an ambipolar material with high balance and mobility. (2) It is a wide gap semiconductor material that has a sufficiently high energy gap (approximately 3eV) between the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO). (3) It can effectively capture electric charges into the emitting dyes.

Thus far, OLED devices with a heterojunction structure composed of organic thin film layers made of five or six different types of materials have been pervasive. The research group achieved the emission of three primary colors and a high luminous efficiency by using an OLED device with a simple homojunction structure.

It expects that this achievement leads to the development of low-cost, highly-efficient OLED displays and lighting equipment. Also, the group intends to apply the new material to organic thin-film solar cells with a multilayer structure like OLEDs.

The achievement was published in the online version of German scientific magazine "Advanced Materials" May 25, 2009.

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SMD unveils production ready OLED-Tvs and AMOLEDs at SID 2009 (http://www.oled-display.net/smd-unveils-production-ready-oled-tvs-and-amoleds-at-sid-2009)
1 June 2009


http://i40.tinypic.com/2d6oaic.jpg


Samsung Mobile Display (SMD), exhibit an extensive range of OLED and mobile LCD displays at the SID-2009 Display Week 2009.

Production-ready AM OLED-TV

SMD is exhibiting 14.1-inch and 31-inch diagonal OLED TV panels. The 31-inch is the world's first OLED display that features full HD resolution (1920 x 1080), a contrast ratio of 1,000,000:1, a color gamut of over 100% NTSC and a ultra-slim design of only 8.9mm – providing outstanding brightness and exceptional image quality. The OLED TV panels can be mass produced through the use of Fine Metal Mask (FMM) technology.

Active Matrix AMOLED for the Future

SMD is showing the world’s thinnest “flapping” OLED panel, one that can flutter in a breeze. The super-thin panel is only 0.05mm thin, about one tenth the thickness of OLED panels with a normal glass substrate. It features a high contrast ratio, is polarizer-free and has a pixel resolution of 480 x 272.

SMD also is showing 4.82-inch and 12.1-inch transparent, foldable and ID card displays as well.

AM OLED for Mobile

OLEDs have become an important consideration in mobile design as set makers require smarter displays to accommodate multi-functions.

SMD will exhibit a full line up of mobile displays from a 3.2-inch “real” WVGA to a 7-inch WSVGA. The 3.2-inch WVGA on exhibit (http://www.oled-display.net/smd-show-new-amoled-display-with-wvga-resolution) is the world’s first OLED-Display with 310ppi. (pixels per inch).

Check out also the new Samsung Mobile Display Website (http://www.samsungsmd.com/eng/main.html) about AMOLED.

--------------------------------------------------------------------------------------

Cheaper Big-Screen OLEDs (http://www.technologyreview.com/energy/22744/page1/)
5 June 2009


http://www.oled-display.net/images/dupont-oled-panel-display.jpg

Longer life: DuPont has developed
longer-lasting OLED materials that can be printed
using cheap, simple techniques to make displays
like this one. Credit: DuPont

New organic display materials can be printed with ink-jets.

High-end displays made from organic materials are lightweight, energy efficient, and crisp--but it has proved difficult to manufacture them cheaply and durably.

Now the chemical giant DuPont (http://www2.dupont.com/DuPont_Home/en_US/index.html) is reporting the development of long-lasting organic-display materials that can be printed cheaply over large areas, much like ink. DuPont says that these materials can be used to make cheaper high-end displays with existing equipment, and the company says that it is in talks with display manufacturers to bring them to market.

Each pixel in an organic light-emitting diode (OLED) is made up of materials that emit red, green, and blue light in response to electrical stimulation via a thin-film transistor backplane.

OLED displays on the market today are made by depositing organic materials in a vapor through a mask. This setup ensures that differently colored subpixels are properly aligned, but the process is expensive, because some material inevitably gets lost, and difficult to do over large areas. For this reason, OLEDs have so far found their way into only a few products, including a Sony television and some Samsung cell phones.

An alternative approach is solution deposition, which involves printing liquid organic materials onto a surface. Several companies and university research groups have been trying to develop such printable OLED materials, but it's difficult to make light-emitting materials that last long enough to bring them to market: the display quality tends to degrade too quickly.

"If one could get high performance from solution-deposition methods, it would be very attractive: it would solve the scaling issues" associated with making these displays, says Nick Colaneri (http://flexdisplay.asu.edu/), director of the Flexible Display Center at Arizona State University, in Tempe. "Now DuPont claims to have solved that problem."

This week at the Society for Information Display (SID) Symposium (http://www.sid.org/conf/sid2009/sid2009.html), in San Antonio, DuPont is presenting OLED materials that can be printed in solution and that make longer-lasting displays. DuPont is disclosing not the composition of the materials or how they are printed. However, the lifetimes of the materials, which the company has disclosed, "are indeed impressive," says Samson Jenekhe (http://www.cheme.washington.edu/people/faculty/jenekhe.htm), a professor of chemical engineering at the University of Washington, Seattle. For example, the lifetime of the green material involved is more than a million hours, which DuPont says is a record. The efficiency and color purity of the materials, says Jenekhe, are comparable to those of the state-of-the-art organic displays on the market.

Vladimir Bulović (http://www.rle.mit.edu/organic/people.htm), an associate professor of electrical engineering at MIT and a cofounder of QD Vision (http://qdvision.com/), a startup company that makes lighting and displays using quantum dots, says, "Since they aim to produce displays, the key will be to understand the deposition and pixelation method they intend to use." DuPont says that the materials are laid down using a high-speed nozzle printer developed with Dainippon Screen (http://www.screen.co.jp/index.html), a Kyoto electronics company.

Colaneri adds that, to his knowledge, no solution-printed OLED displays are currently on the market. But other companies are also trying to tackle the problem. Indeed, Sumitomo executives reported at the SID event that they have been shipping solution-printable polymers for displays. Sumitomo also recently acquired U.K. company Cambridge Display Technologies (http://www.cdtltd.co.uk/), which makes polymer-based displays. And Universal Display Corporation (http://www.universaldisplay.com/) of Ewing, NJ, is also reporting long-lifetime green display materials at the conference.

William Feehery, global business director of DuPont OLED Displays (http://www2.dupont.com/Displays/en_US/) says that DuPont is currently in discussions with several display companies interested in commercializing its new OLED materials. "They already have the manufacturing infrastructure to make these on glass," he says. The company also plans to look into making flexible displays using the technology.

--------------------------------------------------------------------------------------

Corning shows Silicon-On-Glass (SiOG) tech to enable cheaper, larger OLEDs (http://www.oled-info.com/corning-siliocon-glass-siog-tech-enable-cheaper-larger-oleds)
5 June 2009


http://www.oled-info.com/files/images/corning-siog-prototype.jpg

Corning SiOG prototype

Corning is showing their latest Silicon-On-Glass (SiOG) technology. SiOG is used to transfer a thin-film of silicon into a display substrate. SiOG is scalable, and currently Corning can make it on a Gen2 substrate, Gen4 by the end of the year.

The SiOG process would permit the fabrication of stable OLED pixel switches with higher yield and much greater performance than LTPS, and on larger substrates. Corning claims that costs will be lower, because this enables manufacturers to integrate the circuitry on the display substrate easily.

Some panel makers are already trying this out, and hopefully we'll see prototype OLED displays based on SiOG by the end of 2009.

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Scientists eliminate precise doping limits from the OLED manufacturing process (http://www.oled-info.com/scientists-eliminate-precise-doping-limits-oled-manufacturing-process)
5 June 2009

Scientists from the RIKEN Advanced Science Institute in Wako have developed a way to eliminate precise doping limits from the OLED manufacturing process. By using a metal dopant containing molecular groups that block the self-quenching interactions, the scientists have, for the first time, fabricated high-efficiency OLEDs with a wide range of doping concentrations.

Hou and colleagues modified a phosphorescent iridium metal complex with a class of molecules known as amidinates. These molecules bind to iridium through a nitrogen atom that localizes electrons near the center of the metal complex. Bulky carbon groups on the edges of the complex are inert and prevent the materials from attaching and self-quenching their phosphorescence.

Wow, nice all positive news containing improvements and announcements.

This is superb stuff for OLED :)

Wow thanks for the details!. There is more here then most sites that are selling these!
http://www.****************/blog/see.GIF
Great post

[SID] LG Display Develops 'OLED Panel Able to Withstand Hammer Strikes' (http://techon.nikkeibp.co.jp/english/NEWS_EN/20090608/171415/)
8 June 2009


http://techon.nikkeibp.co.jp/english/NEWS_EN/20090608/171415/3A.jpg

The OLED panel was repeatedly
being hit with a mallet, which
made a huge noise in the
demonstration movie.

LG Display Co Ltd of Korea exhibited a 15-inch OLED panel at SID Display Week 2009. To highlight its toughness, the company showed a demonstration video of the panel being hammered with a mallet.

The OLED panel has a thin profile, measuring only 347.94 x 209.80 x 0.85mm. It has 1,366 x RGB x 768 pixels with a resolution of 105 pixels per inch (ppi). The average luminance is 200cd/m2, and the contrast ratio is 100,000:1. The frame frequency is 120Hz.

What surprised visitors most is that the panel was repeatedly being hit with a mallet in the demonstration movie.

"We formed an OLED layer on a glass substrate and provided a steel sheet on its back side and a resin sealing layer on the front, making the panel durable to shock," LG Display said.

However, the panel is not flexible because of the glass substrate, the company said.

The terms "rugged" and "ruggedized," which mean tough or less breakable, were ones of the keywords at this year's SID. They will probably become more familiar words as more and more displays are becoming flexible.

http://i43.tinypic.com/4ht92d.png

http://i43.tinypic.com/4ht92d.png

Amazing lifetime numbers for green. Acceptable for blue (100% duty time though)

The main problem I see here is that a TV using those materials should be re-calibrated quite often.

http://www.youtube.com/watch?v=FICAHsE_enE

:eek:

http://www.youtube.com/watch?v=FICAHsE_enE

:eek:

That's a great show of OLED strengths. OLED is very suitable for camera applications.

That's a great show of OLED strengths. OLED is very suitable for camera applications.

Ohh! :D Perhaps the Samsung TL320 will be my first digital camera IF it is capable of taking high "enough" quality pictures! :p

http://www.youtube.com/watch?v=FICAHsE_enE

:eek:

Truly an eye opener. Thanks for sharing it.

More good news (yummy)
-reliability/durability of certain OLED panels
I could see its potential usage in the near future for outdoor and extreme use (especially in heavy-duty applications such as military and law enforcement)
-lifetime improvements
In the case of the DuPont products, those are indeed convincing finds. Personally though, here's what I think: Green is unbelievable (should last for decades if run at 24/7 non-stop); Red has broken through the 60k threshold (of ideal) HDTV lifespan; Blue seems to be improving (almost there at 38k); Now DuPont is using a Deep Blue (not sure what to say about this Deep Blue thing......but whatever works, then bring it on :) )

Indeed, superb news in the forefront of OLED technology and it doesn't stop there. Amazing indeed :)

Quick question. Is it possible for OLED (or any display tech for that matter) to theoretically completely eliminate screen glare/reflection from bright sources such as windows/bulbs etc.? In theory. i.e. Can there be any materials used for displays that are even potentially capable of this?

The key is the coating on top of screen. It must be an amazing material that can absorb, without reflecting or passing through, outside light, and it must pass light from inside completely unhindered. Does not exist yet. You either have coatings that result in a glossy screen - those provide superior transmission of display's light to the viewer, but reflections/glare problems abount. And you have antiglare matte coatings which mostly still reflect light,, but diffuse it - no reflection/glare, but can still 'wash out' in bright light - but the problem is these tend to take a bite out of display's brightness. The solution is to increase brightness of pixels, which leads to higher energy consumption, and more component wear. And in case of LCDs where it is the backlight you have to bighten, this can really wash out the blacks. This is why OLEDs look better in the sun - they can be put under a much more aggressive antiglare coat.

Samsung Jet - Smarter Than A Smartphone (http://www.samsungusanews.com/2009/06/samsung-jet-smarter-than-a-smartphone/)

...
The Jet’s pioneering 16M WVGA AMOLED display (3.1”) offers vivid and colorful full touch mobile experience available; the WVGA AMOLED screen provides a resolution that is four times higher than a WQVGA screen. The 800MHz application processor delivers breathtaking speed and stunning performance, making Jet the fastest full touch handset on the market today.
...

Samsung Jet - Smarter Than A Smartphone (http://www.samsungusanews.com/2009/06/samsung-jet-smarter-than-a-smartphone/)

What impressed was the processor! 800mhz! This is more than twice a PS2.

Now DuPont is using a Deep Blue (not sure what to say about this Deep Blue thing......but whatever works, then bring it on :) )

If I understand well, Deep blue material is just a blue component which is able to show a wider ammount of blue tones towards black. That means richer, more accurate colors on dark scenes.

OLED green components are already delivering an impressive gamut at useable lifespans and power efficency. This new blue material delivers extraordinary blue performance at a cost: Lower efficency and questionable lifespan.

http://www.oled-info.com/interview-lg-displays-oled-sales-and-marketing-vp

Very interesting interview. Looks like Sony stands to loose some OLED ground if they don't release their 21" 1366x768 OLED before LG releases their 15"! ;)

Q: You have been showing a 15" OLED TV prototype since the beginning of 2009... and you said it can begin production by June 2009. Which is now.. will you start making these panels? Or are you still waiting for a customer?
During the period of Dec 2009-Jan 2010, our customer will launch 15" OLED TV in Korean market. Thereafter global roll-out follows.
http://www.oled-info.com/files/images/lg_oled_ces_2009_front_2.img_assist_custom.jpg

LG, Samsung Set to Storm Onto OLED Market with 14", 15", 31" Displays (http://www.dailytech.com/LG+Samsung+Set+to+Storm+Onto+OLED+Market+with+14+15+31+Displ ays/article15450.htm)
17 June 2009


http://images.dailytech.com/nimage/11363_large_lg_oled.jpg

LG has announced a launch window for its 15-inch
OLED TV. It will be shipping the set in
December. (Source: Engadget)

http://images.dailytech.com/nimage/11364_large_samsung-31-inch-oled-hdtv.jpg

Samsung is also hoping for a launch late this year
or early next, though no official shipping plans have
been announced. It says its 31-inch set is "ready for
production". It also has a 14.1-inch set geared for
the laptop market (Source: OLED-Info)

LG, Samsung try to one up competitor Sony

OLED technology has been hailed for a couple years now as the future of digital display. OLED and its various derivatives have managed to live up to some of this hype in the mobile electronics market (http://www.dailytech.com/Samsung+Unveils+I7500+Android+Smartphone/article14972.htm), but in the TV and display market they remain a rare and seldom seen species. In fact, to date only one manufacturer -- Sony -- has launched an OLED TV. And Sony's 11-inch XEL-1 (http://www.dailytech.com/Slender+Beautiful+First+OLED+TV+Introduced/article9108.htm) was a wallet-breaker priced at $2,500.

Now LG is set to also jump into the nascent OLED market. It may also manage to steal the size crown from Sony, unleashing a 15" OLED set (http://www.engadget.com/2009/06/17/lg-15-inch-oled-tv-on-sale-in-december/) onto the market. The set will begin shipping in December, according to an interview with Won Kim, LG's VP of OLED sales and marketing.

The set is expected to match the capabilities of the prototype unit, first unveiled in January. The prototype sported a fancy 1,000,000:1 contrast (same as XEL1), a 1,366 x 768 pixel resolution (better than XEL1), and a 30,000-hour shelf life (much better than XEL1, which degrades after 1,000 hours). It is also expected to be ultra-thin (the XEL1 is just 3mm thin).

The set will first launch in LG's home nation -- South Korea. Then it will slowly make its way to Japan and possibly the U.S., though no official launch date has been aired for these nations. The price is expected to be very high. There's also no word yet on the production numbers (Sony's XEL1 production has been relatively low (http://www.dailytech.com/Only+2000+Sony+OLED+TVs+Available+in+Japan/article9741.htm) with production, in the thousands).

However, LG isn't the only competitor with OLED launch plans for late this year or early next. Samsung says (http://www.oled-info.com/samsung-announced-production-ready-141-oleds-laptops-and-31-oled-tvs) it has 14.1" and 31" displays "ready for production". The displays use a Fine Metal Mask (FMM) technology to achieve larger sizes or better character in smaller displays.

The 14.1" display is aimed at the laptop market and offers 1366x768 resolution, 200cd brightness, color gamut of 107% NTSC and a 1,000,000:1 contrast. It'd be perfect for pricey high-end laptops like the Voodoo Envy or the MacBook Air as it's only 2.7mm wide and likely will be ridiculously expensive to boot.

The 31" set is set to enter the TV sector and will likely be even more expensive. Similar to its prototype (http://www.dailytech.com/Samsung+Unveils+31inch+OLED+Screen/article10155.htm) showcased over a year ago, it is a bit thicker at 8.9mm. It offers an impressive FHD (1920x1080) image, 200cd brightness, color gamut of 107% NTSC and a 1,000,000:1 contrast.

Samsung, however, has offered no clue when the upcoming "production" might start or when it will actually be arriving on the market. LG may be able to get the jump on Samsung, but look for Samsung to storm in early next year or even surprise with a launch late this year. Another X-factor is Sony. Sony has said it also is ready to produce larger sets (http://www.dailytech.com/Sony+Drops+200+Million+on+OLED+Manufacturing+Technology/article10759.htm), and has speculated in the past that it will launch them late this year or early next.

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LG 15-inch OLED TV on sale in December (http://www.engadget.com/2009/06/17/lg-15-inch-oled-tv-on-sale-in-december/)
17 June 2009


http://images.dailytech.com/nimage/11363_large_lg_oled.jpg


http://www.onlyoled.co.uk/wp-content/uploads/2009/05/lg15oled-1l.jpg


We knew that LG's 15-inch OLED TV (http://www.engadget.com/2009/01/07/lg-to-produce-15-inch-oled-panel-this-summer/) was entering into production this summer, now we've got a ship date: December. This according to an interview with Won Kim, LG's VP of OLED sales and marketing. While 15-inches is small, it easily trumps the world's first production OLED TV, Sony's $2,500 11-inch XEL-1 (http://www.engadget.com/tag/xel-1), and is a reasonable size for the bedroom (if you must) or kitchen counter. No word on specs but we expect the production set to offer the same million:1 contrast, 1,366 x 768 pixel resolution, and 30,000-hour shelf life as the prototype unveiled in January. The TV will launch first in Korea for an undisclosed price that is bound to be punishingly expensive.

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Interview with LG Display's OLED sales and marketing VP (http://www.oled-info.com/interview-lg-displays-oled-sales-and-marketing-vp)
17 June 2009


http://www.oled-info.com/files/images/lg_oled_ces_2009_front_2.jpg

LG 15-inch OLED at CES 2009

http://64.202.120.86/upload/image/new-news/2009/january/ces-2009-and-future-technology-trends-part-1/lg-oled.jpg

LG 15-inch OLED at CES 2009

http://www.oled-info.com/files/images/UDC_Fleixble_OLED_CES_2009.JPG

UDC Flexible OLED Display Concept photo
from CES 2009

LG Display is one of the leaders in OLEDs, but they have recently sent some mixed messages - great OLED TV prototypes, promises of new OLED TV products soon, no AMOLED phones plans... Mr Won Kim, Vice Presideont of OLED Sales and Marketing from LG Display has agreed to answer a few questions we had, and set things straight.

Mr Won Kim ha sas BA in business management from Korea University, and has been working for LG since 1984. Now he's VP of OLED sales and marketing (since 2005).

Q: What kind of OLED products are LG currently selling? What is your current capacity for OLED production?

Mobile phone only. Current capacity is 7k sheets (365 x 460) per month, which is equivalent to 200k pcs of 3" size.

Q: Can you name some products that use your OLED displays?

So far two mobile phones tailored to SKT in Korea.

Q: You have been showing a 15" OLED TV prototype since the beginning of 2009... and you said it can begin production by June 2009. Which is now.. will you start making these panels? Or are you still waiting for a customer?

During the period of Dec 2009-Jan 2010, our customer will launch 15" OLED TV in Korean market. Thereafter global roll-out follows.

Q: LG has allocated more money to OLEDs in the beginning of the year. Are you increasing production?

Production facilities are being installed in Paju. New setup will commence production next year alongside incumbent one in Gumi.

Q: We know that you're working with UDC on Flexible OLEDs (http://www.oled-info.com/flexible-oled). You have commented in the past that you see flexible OLED products in the future. Is this still on? what kind of products do you envision?

Flexible OLED project is still on. Flexible display would offer free hands to designers and brand-new applications are enabled, however main technical constraints still keep the technology immature for commercial deployment. Target for UDC (http://www.oled-info.com/universal_display_udc) is as you know military application, where we have no further information.

Q: Your phone division recently said (http://www.oled-info.com/lg-focus-customized-phones-will-not-release-amoled-handsets) that they're not going to launch an OLED phone. Can you give more info on that decision? What has to happen in order for you to incorporate OLEDs in your phone?

OLED could not offer high resolution above 230ppi in the past. And cost was very high. They are main reasons for no acceleration. Things are being changed. Our phone division is mulling over OLEDs in every aspects. Leveraging just one of three key attributes of OLED, vivid picture quality, slim form factor especially integrated touch and eco-friendly power savings, OLED phones will not only survive entrenched LCD ones but position as a premium segment.

Q: You have started to work on OLED deposition equipment (http://www.oled-info.com/samsung-and-lg-co-develop-oled-deposition-equipment) together with Samsung. How is this coming along? Should we expect more cooperation in OLED programs?

Bigger size OLED equipment development programs are there. It's not that direct cooperation between two companies. But no reason to disregard cooperation in OLED with Samsung. Cooperation partner is not confined to Korean companies.

Q: What are the main challenges still ahead for OLEDs?

Main challenges are depending on what sort of application OLED is destined to. For example, image sticking is more critical to Notebook. Overall higher cost than LCD mainly stemmed from unreached economy of scale is the key challenge.

Q: Samsung have recently joined the OLED lighting race. Do you have plans to do OLED Lighting too?

OLED lighting (http://www.oled-info.com/oled-light) is an interesting business area, but no plan yet.

Q: Where do you see the Display market in 5 years? Where will OLEDs be?

Two different perspectives coexist for a while.

OLED's current acceleration in growth is based on mobile handsets, where it is arguably better looking and more power-efficient that LCDs, but those are incremental improvements. Most mobile handsets use LCDs, where they perform very effectively. We could argue that the reason OLED has grown so slowly (until now) is because they were "nice" rather than "necessary," while costing more than the incumbent display (of course).

Or,

As you can see OLED confers massive advantages, the main problem is in productionising the technology. They are starting with small screens, just as LCD did, and then gradually working their way up. But already they can be found in a number of production devices. So every LCD device will become obsolete, as the features and benefits of OLED devices are so overwhelmingly superior. And games will look so much better.

Thank you Won, thanks for the interview, I wish you good luck, and we're all waiting to see your 15" OLED TVs by the end of the year!

Can't wait for this tech, it's so thin it should take up an entire wall. :D

New DuPont “Gen-3” OLED Displays Technology Achieves Record 1 Million Hours Lifetime (http://vocuspr.vocus.com/VocusPR30/Newsroom/Query.aspx?SiteName=DupontNew&Entity=PRAsset&SF_PRAsset_PRAssetID_EQ=112543&XSL=PressRelease&Cache=False)

Performance Paves the Way for Commercial OLED Displays in TVs, Mobile Devices

Wilmington, Del., June 22, 2009 - DuPont today announced the development of its new, proprietary “Gen-3” solution-based organic light emitting diode (OLED) materials technology that can last a record lifetime of more than 1 million hours – equivalent to over 100 years of constant use.

The milestone achievement for the Gen-3 green OLED material has led to substantial performance gains for printable OLED light-emitting materials, while two new Gen-3 solution blue materials also have been developed that set new standards for longevity and color. These OLED materials can meet or exceed the performance of today’s vapor deposited materials, and are paving the way for manufacturers to develop future low-cost OLED displays for use in mobile devices, notebook PCs and televisions.

“Printing OLEDs significantly lowers the cost to manufacture displays, and with our advances in material technology, display manufacturers can see the material lifetimes and performance required for commercialization,” said William Feehery, global business director -- DuPont OLED Displays. “With lifetime five times better than just a couple years ago, these new materials will allow solution OLEDs to be used in mobile displays, and also to begin to penetrate the television and general lighting markets at a lower cost than today's evaporated OLED technology.”

http://www2.dupont.com/Media_Center/en_US/assets/images/releases/nr_tn_Lifetime_by_Year.jpg

Although green material lifetimes already exceed those of red and blue, the significance is that in a display, green contributes more to the white brightness. The longer lifetime also can lead to an increase in total display lifetime.

Historically, performance of blue light-emitting materials has been the most challenging, however, DuPont Gen 3 solution blue materials are demonstrating significant performance gains. One of the blue materials has demonstrated a lifetime of 38,000 hours, which is one of the longest blue OLED material lifetimes publicly reported. A second material has been developed with exceptionally deep blue color coordinates, with a lifetime of approximately 41,000 hours. As commonly reported in the industry, materials lifetimes refers to the time for the luminance to decrease to half the initial value starting from 1,000 cd/m2, as estimated from accelerated tests.

According to DisplaySearch, the total OLED display market is forecasted to grow to $5.5 billion by 2015, from $600 million in 2008, with a compound annual growth rate of 37 percent. DisplaySearch also forecasts that in 2015, televisions will pass mobile phone main displays to become the highest-revenue application at $1.92 billion.

IGNIS shows new AMOLED prototype using its MaxLife backlane tech (http://www.oled-info.com/ignis-shows-new-amoled-prototype-using-its-maxlife-backlane-tech)
21 June 2009

IGNIS Innovation unveiled a prototype display using its backplane technology called MaxLife. The MaxLife solution compensates not only for the thin film transistor (TFT) degradation, but also for OLED as well.

IGNIS showed its prototype of a cutout of a 32” 1080p HDTV, with an operating device lifetime of 75,000 hrs and no image burn-in over that period, which is equivalent to 20 years when watching for 10hrs/day.

“The growth of the AMOLED industry has been constrained due to the technological hurdles associated with achieving a truly reliable, uniform and scalable TFT backplane. Our MaxLife platform now enables our customers, the display manufacturers, to accelerate their market introduction of large, visually stunning and affordable AMOLED HDTVs and other large area applications in the very near future”, said Paul Arsenault, President and CEO of IGNIS.

“Because our technology is based on electrical feedback only, this means we don’t use expensive and unreliable components such as a photodiode to achieve compensation. Best of all, MaxLife(TM) technology can be used with any OLED material type (small molecule or polymer) and any kind of TFT (LTPS, amorphous silicon, etc)”, added Corbin Church, Vice President. “We will show our demo using an amorphous silicon backplane, which can easily scale up to Generation 10 size while enjoying high reliability and low unit manufacturing costs”

Now THAT'S very interesting. Might just kick the OLED onto the market, and in larger sizes.

Sounds way too good to be completely true. But in case it is completely true...game, set, match.

Seiko Epson sees 37" (and larger) inkjet-printed OLED TVs in 2012 (http://www.oled-info.com/seiko-epson-plans-launch-37-inkjet-printed-oled-tvs-2012)
23 June 2009


http://www.oled-info.com/files/images/epson-14-inch-inkjet-processed-oled.jpg

Espon 14-inch Inkjet processed OLED

Last month Seiko Epson has unveiled a new inkjet-printing technology for OLEDs, suitable for large sized panels. We have talked to Satoru Miyashita, General Manager of Seiko Epson's Core Technology Development Center about this new technology and their plans for OLED production.

Q: You have shown a new ink-jet based OLED technology. You say it will enable 37" or larger HD-OLED TVs. Do you have any plans to actually make such TVs? When do you think products can be made with this new tech?

Epson is currently considering a variety of options regarding the commercialization of this technology, but at this point no specific announcements have been made about plans. We see 2012 as being the year that 37"+ OLED TVs will be launched by various makers, and 2015 as the year that sales will really take off for this market.

Q: Will the new printing technology also allow OLED lighting panels? Or is it just for displays?

This technology was designed specifically with displays in mind. It may be possible to apply it to the production of lighting panels too, but there may not be many benefits to using the inkjet process as OLED lighting uses a single color.

Q: Back in 2004, you signed an agreement with Universal-Display to co-develop inkjet OLED printing. Is the new tech part of this agreement? Are you using PHOLED materials or IP?

Epson's relationship with UDC is still strong and research is ongoing, and we published a paper at SID 2009 on P2OLED small molecule systems with UDC's assistance.

This paper is about the status of Printed OLEDs. Epson says that the biggest issues with printed OLEDs has been significantly improved. They give examples of a polymer-based OLED device with 45,000 hours lifetime, and a phosphorescent small-molecule system that has 40 cd/A efficiency.


Q: In 2007 you said you will begin to make OLED panels (the aim there was to make large 8" panels). Is this still on track? Will Seiko-Epson be making medium sized panels? When?

Epson does have the capability to produce these panels, and also demonstrated them last year at a display exhibitions in Japan. Research about commercialization continues, but at this point no announcements have been made about suitable applications for such products. As with larger panels, cost/benefit issues remain.


http://www.oled-info.com/files/images/epson_8_inch_for_automative_apps.jpg

Epson 8-inch OLED for automotive applications

Q: Are you working on other OLED technologies? or are you focusing on Inkjet printing?

This inkjet technology was designed with large-size panels in mind. R&D continues on other methods and technologies for other applications too.

Mr Satoru, Thank you very much! I hope we'll see large sized OLED TVs by Epson soon, maybe even before 2012...

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LG Display enlists Japan's Idemitsu in OLED race (http://www.reuters.com/article/southKorea/idUST17999620090624)
24 June 2009


http://www.oled-display.net/images/lg-display-idemitsu-oled-business.jpg


SEOUL, June 24 (Reuters) - LG Display (034220.KS), the world's No. 2 maker of LCD screens, said on Wednesday it formed an alliance with Japan's Idemitsu Kosan (5019.T) in its drive to compete in the OLED (organic light emitting diode) market.

"The agreement enables LG Display to secure a stable source of OLED materials," the South Korean company said in a press release. "This will accelerate the growth of LG Display's OLED business, which is emerging as a new growth engine."

LG Display decined to disclose further information on the size and specific details of the agreement.

Idemitsu Kosan is an oil refiner active in OLED materials development.

OLED screens, increasingly used in premium mobile phones, use organic compounds that emit light when electricity is applied. Because they do not need backlighting, OLED panels are slimmer and more energy efficient than liquid crystal display panels.

But production costs and difficulties with larger screen sizes have so far held back the technology's commercial prospects.

LG Display, citing market research firm DisplaySearch, said the global OLED market is forecast to grow from $1.05 billion in 2009 to $3.33 billion by the end of 2010.

LG Display is planning to start mass producing OLED screens in 2010.

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Kodak OLED technology on Green Magazine TV (http://www.oled-display.net/kodak-oled-technology-on-green-magazine-tv)
24 June 2009

YouTube: Kodak OLED technology on Green Magazine TV (http://www.youtube.com/watch?v=-PHjHD8SXns&fmt=18)
{video won't embed due to forum coding problem}

Kodak OLED technology will be featured on Green Magazine TV, a show produced by WDCC TV and airing on major networks.

The show is about companies that are leading the way to a more sustainable future. Kodak's continued innovations in OLED technology will make the world a better place, with applications in both flat panel display and solid-state lighting. Kodak's compelling OLED "Green" impact will ultimately result in panels having fewer sub-components for ease of recycling, absence of heavy metals requiring special handling (such as mercury), and lower energy consumption.

We are proud to know that all OLED products will use Kodak's invention of OLED technology. Kodak's leadership role in OLED technology represents what
Kodak is all about ... "Making the World a Better Place" for many generations to come.

Universal Display and Seiko Epson achieves new efficient red and green inkjet printable OLEDs (http://www.oled-info.com/universal-display-and-seiko-epson-achieves-new-efficient-red-and-green-inkjet-printable-oleds)
26 June 2009

Universal Display (http://www.oled-info.com/universal_display_udc) and Seiko Epson (http://www.oled-info.com/oled_panel_makers/seiko_epson) have been working on their inkjet printable, phosphorescent OLED technology and materials for quite some time... They have now announced new advances in performace:

•A red P2OLED with CIE (0.67, 0.33), an efficiency of 10 candela per ampere (cd/A) and an operating lifetime of 20,000 hours, to 50% of initial luminance of 1,000 nits

•A green P2OLED with CIE (0.33, 0.62), an efficiency of 34 cd/A and an operating lifetime of 25,000 hours.

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In the spotlight: OLEDs in a final push to market (http://optics.org/cws/article/research/39337)
26 June 2009

PDF Version (http://images.iop.org/objects/optics/analysis/14/6/4/pdf.pdf)

Organic light-emitting devices (OLEDs) are making waves in the displays and lighting markets. Stefan Grabowski tells Marie Freebody about the milestones that need to be reached before the technology finds widespread commercialization.

Stefan Grabowski works at Philips Research Laboratories, Germany, where his focus is on device physics and OLED stack development. Grabowski is also the project manager of OLED100.eu, an EU-funded R&D collaboration that aims to realize efficient OLED products for the European lighting industry. Funded under the seventh Framework programme, the project comprises 14 partners from six countries.

Can you explain how OLEDs work?

OLEDs are solid-state lighting devices that work in a similar way to their inorganic cousins. A typical OLED is composed of two layers of organic material deposited on a transparent substrate, sandwiched between an anode and a cathode terminal. One of the layers is emissive and transports electrons from the cathode; the other layer is conductive and transports holes from the anode. When a current is passed through these layers, light is emitted via electron-hole pair recombination.

Unlike their inorganic counterparts, OLEDs can be easily structured to show patterns of colour or homogeneous white light and the layers that make up the device can be deposited on large areas.
Why is OLED research important?

OLEDs have the potential to become even more efficient than energy-saving bulbs. More than a quarter of electricity consumption in the EU is due to lighting, so an energy-efficient substitute is an important area of research. One of the targets of the OLED100.eu project is to build OLEDs with an efficacy value of 100 lm/W.

When efficient OLEDs are available at mass-production costs, they can be used for a multitude of applications in lighting. OLEDs offer new design options and integration possibilities because they could be built to cover large areas, they are extremely thin and they can be made transparent or flexible. The brightness and colour of OLEDs are fully adjustable, which creates a new way of decorating and personalizing people's surroundings.

What are the main applications and on what timescales will they occur?
There are two main application areas: displays and lighting. Small OLED displays already enjoy widespread application in portable devices such as mobile phones, MP3 players and personal digital assistants. Larger display devices are beginning to emerge on the market. For example, Sony has announced a 27 inch OLED television scheduled to hit the market in 2009.

OLEDs for lighting applications have completely different requirements. These OLEDs do not consist of many small pixels, but of one large emitting area. As a result, the device efficiency must be much higher. At first OLED lighting will appear in niche applications, but more sophisticated products will appear over time.

The vision is to have OLED tiles mounted on walls or ceilings to give a large uniform emitting area. Transparent OLEDs could also be incorporated into windows, which allow daylight to pass through during the day and emit light at night.
How well do you expect OLEDs to penetrate the lighting market?

OLED lighting is on the verge of commercialization. There is an OLED lamp available from the designer Ingo Maurer in Germany (it's based on Osram OLEDs) and Philips offers a technology kit that contains several OLEDs in various shapes and colours along with an electrical driver for a plug-and-play solution. These are not yet mass products but they indicate that OLED lighting is ready for the market. As the technology progresses, so too will the range of applications: from room and office lighting through to decorative and design-oriented lighting.

What is the most important recent advance and what hurdles remain?
The increase in efficiency of white OLEDs to a level that is comparable to that of a compact fluorescent lamp means that OLEDs are now much more efficient than halogen lamps and incandescent bulbs. The lifetime of OLEDs has also increased drastically to values of greater than 10,000 hours, making OLEDs appealing candidates for certain niche lighting applications.

But for general lighting purposes, OLED efficiency as well as lifetime must be improved further. In addition, the size of the emitting area has to be increased in order to fully utilize this unique feature. Therefore, production processes and device architectures are needed to enable uniform current distribution over the complete area as well as high reliability. From a commercialization point of view, mass-manufacturing equipment and processes have to be installed and developed.
What will the next breakthrough be?

A breakthrough is hard to predict. The OLED100.eu project is working to develop OLED technology further so that we will reach efficacy values of 100 lm/W, lifetime values of 100,000 hours and an OLED size of 100 × 100 cm. A breakthrough in the field of blue efficient phosphorescent emitters with a long lifetime would help us on that journey.
For more information about the OLED100.eu project, visit www.oled100.eu/homepage.asp (http://www.oled100.eu/homepage.asp).

• This article originally appeared in the June 2009 issue of Optics & Laser Europe (http://optics.org/ole) magazine.

Light soon to shine on OLED screens (http://www.chicagotribune.com/business/chi-tc-biz-tech-oled-0624-0705-jul02%2C0%2C7561853.story)
2 July 2009

DALLAS - -- It's not yet lights-out for LCD and plasma, but OLED displays could push those technologies out of the limelight.

Organic light-emitting diode screens and televisions have been around for a few years, and Sony's introduction last year of its small 11-inch OLED television for $2,500 seemed more like a bad joke than a real product.

But OLED -- with its larger color range, ability to show true black and high refresh rate compared with LCD; and low power consumption and physical thinness compared with plasma -- is finally ready to go mainstream.

Janice Mahon, vice president of technology commercialization at New Jersey-based Universal Display Corp., said affordable OLED displays are almost here.

"We're not that far from TVs being in the marketplace," she said.

Indeed, OLED televisions probably would be trickling out onto Best Buy and Wal-Mart shelves already if the recession hadn't discouraged so many electronics companies from ramping up their planned investments in OLED manufacturing, Mahon said.

"Sony, Samsung and LG all have efforts in this area," she said. "I would think that within the next year or two, the next technical hurdles that need to be addressed will be addressed."

Samsung already has said that its 14.1-inch and 31-inch OLED sets are "production ready." And LG confirmed that its 15-inch OLED television will start shipping in either December or January.

On a smaller scale, Microsoft Corp.'s new Zune HD portable media player will ship this fall with a 3.3-inch OLED touch screen, expanding the existing market of mobile devices with OLED displays.

While Apple Inc. opted to use traditional LCD screens on its new iPhone 3GS, it's possible that OLED could find its way into the company's iPod Touch media player devices before the end of the year.

On the TV side, the really good news is that, despite what Sony is charging for its 11-incher, prices for OLED TVs are expected to be lower than what consumers have been paying for LCD televisions.

Mahon said OLEDs are built with far fewer components than LCD sets.

"OLEDs will be less expensive than LCDs are today," Mahon said, adding that it takes about 100 steps in a manufacturing plant to build an LCD television, compared with 86 for an OLED.

A few years down the road, some really wild stuff is coming in the form of "flexible OLED." Flexible OLED displays are just what they sound like: paper-thin video displays made out of tough plastic that can be bent and rolled.

The application that has received the most attention so far is for the military, in a sort of wrist band communicator/display for troops in the field.

"I think the military is a wonderful early adopter and is, through funding, helping us with some of these [technical] problems," Mahon said. "But I think consumer applications are going to dwarf those of the military."

One of the neatest devices that Mahon envisions is a smart phone that rolls up into a pen.

When you need the screen, just unfurl it like a digital scroll.

With all the articles and speculation around it seems that OLED will be here sooner rather than later. Price will be prohibitive, as is the case with all new technology..
It seems as though the companies are looking at smaller size and flexible displays as their priority as opposed to larget size big screen TVs. The reason why I say this is that OLED will capture the market in these categories I mentioned rather than share them with large lcd and Plasma co.

DisplaySearch: OLED revenue to grow to 7B$ in 2016, we might see new OLED TVs by Sony, Samsung and LG in 2009 (http://www.oled-info.com/displaysearch-oled-revenue-grow-7b-2016-we-might-see-new-oled-tvs-sony-samsung-and-lg-2009)

07/14/2009 DisplaysearchLGMarket reportsOLED productionOLED TVRitDisplaySamsungSony
DisplaySearch has released a new edition of their Quarterly OLED Shipment and Forecast report.

The report says that:

http://www.oled-info.com/files/images/displaysearch-oled-display-forecast-july-2009.jpg

•OLED display revenue will grow to 7.1B$ by 2016.
•AMOLED has passed PMOLEDs in Q1 2009
•Samsung Mobile Displays still #1 in OLED shipments, with a 37% market share. RiTdisplay is #2.
•Worldwide OLED display revenue in Q1'09 was $143 million, down 8% Q/Q. AMOLED revenues were up 17% Q/Q.


According to the report, several manufacturers are planning OLED TV panels in 2009. LG will debut their 15" AMOLED TV by the end of the year. DisplaySearch estimate that it's likely (they give it 70%) that Sony will release their 27" OLED TV this year. It's a bit uncertain because of Sony's financial situation.

Samsung might (DisplaySearch gives it 40% chance) release their 14.1" OLED TV - but there's no announcement yet.


I hope to replace my CRT computer monitor soon! :p ;) :D

Quick question. Is it possible for OLED (or any display tech for that matter) to theoretically completely eliminate screen glare/reflection from bright sources such as windows/bulbs etc.? In theory. i.e. Can there be any materials used for displays that are even potentially capable of this?

Probably not. A new transparent screen material will need to be introduced.

Development of Thin-film Electroluminescent Device Using Inorganic Oxides (http://www.aist.go.jp/aist_e/latest_research/2009/20090715/20090715.html)
28 May 2009


http://www.aist.go.jp/aist_e/latest_research/2009/20090715/photo.jpg

Light emission from an inorganic EL device with perovskite oxides

Hiroshi Takashima (Senior Research Scientist) and coworkers of the Superconducting Devices Group (Leader: Satoshi Kohjiro) of the Nanoelectronics Research Institute (Director: Seigo Kanemaru), National Institute of Advanced Industrial Science and Technology (AIST) (President: Tamotsu Nomakuchi) have developed red electroluminescent (EL) devices using thin-films of chemically stable perovskite oxides.

The thin-film EL devices use perovskite oxides, typified by barium titanate (BaTiO3), which has long been used as capacitor material for electronic circuits. With an emission starting voltage of ≈10 V AC, the power source can be downsized due to low voltage operation of the device. A wide viewing angle is obtained by means of plane emission through the entire surface of the transparent electrode. There are no resource constraints due to the global abundance of required materials for the emitting and insulator layers. As all layers including the emitting layer are made of chemically stable inorganic materials, characteristic degradation due to oxidation or heat is unlikely to occur and thus a sealing process can be simplified. Hence, energy will be saved in a manufacturing process. Such applications as lighting, optical sources and displays will become feasible if higher brightness and polychromatic radiation are achieved in the years to come.

The results of this study will be published in the German scientific journal, "Advanced Materials."

LG slips 30-inch OLED panel production into 2012

Via Engadget (http://www.engadget.com/2009/07/17/lg-slips-30-inch-oled-panel-production-into-2012/)
by Thomas Ricker, posted Jul 17th 2009 at 1:52AM:

With LG's 15-inch OLED TV coming to stores in December it can't be long until LG's mid-sized TV's start showing up for retail right? After all, Samsung and Sony are on record with claims of producing mid-sized OLEDs as early as this year and no later than mid-2010. Not so fast, literally. Although LG had previously targetted 2011 for the mass production of its 32-inch OLED TV, CEO Kwon Young Soo now says that LG plans on producing 30-inch OLED panels for TVs in 2012. Of course, all those earlier OLED projections were made before the global economic meltdown so delays have to be expected, however upsetting it may be.

---
bye
Benny42

OLED Emission efficiency improved by 75% from a Korean research team (http://www.olednet.com/focus/focus_board/focus_view.asp?idx=284)
15 July 2009

A KAIST research team led by Prof. Kyung-Cheol Choi of the School of Electrical Engineering & Computer Science discovered the surface plasmon-enhanced spontaneous emission based on an organic light-emitting device (OLED), a finding expected to improve OLED's emission efficiency, KAIST authorities said on Thursday (July 9).

For surface plasmon localization, silver nanoparticles were thermally deposited in a high vacuum on cathode. Since plasmons provide a strong oscillator decay channel, time-resolved photoluminescence (PL) results displayed a 1.75-fold increased emission rate, and continuous wave PL results showed a twofold enhanced intensity.

"The method using surface plasmon represents a new technology to enhance the emission efficiency of OLED. It is expected to greatly contribute to the development of new technologies in OLED and flexible display, as well as securing original technology," Prof. Choi said.

The finding was published in the April issue of Applied Physics Letters and the June 25 issue of Optics Express. It will be also featured as the research highlight of the August issue of Nature Photonics and Virtual Journal of Ultrafast Science.

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LG Display plan to produce 32-inch OLED TVs in 2012 (http://www.oled-display.net/lg-display-plan-to-produce-30-inch-oled-tvs-in-2012)
17 July 2009


http://www.oled-display.net/images/lg-amoled-tv-full-hd-front.jpg


LG Display aims to produce 32-inch OLED televisions in 2012 in an effort to find a new source of revenue, the LG Display CEO Kwon Young Soo said Friday in an meeting.

The CEO Kwon Young Soo said:

"We plan to produce 32-inch OLED panels for TVs in 2012. The commercial success of OLEDs hinges on how it shows its superiority compared to LCD technologies."
At the question why LG Display doesn't want to produce smaller OLED panels the LG CEO said:

"We will focus on TV panels rather than cell phone panels because the larger the display, the more efficient the OLED technology."
LG Display's investment in OLED is huge, so plans the company to hiring 1700 people this year.

Look at this amazing videos and than you can not wait until 2012:

Youtube: Objet AMOLED TV from LG Electronics at CES 2009 (http://www.youtube.com/watch?v=_Yg2-KbJ0kk&fmt=18) [HD Version (http://www.youtube.com/watch?v=_Yg2-KbJ0kk&fmt=22)]
Youtube: LG 15" OLED TV Prototype (http://www.youtube.com/watch?v=zOwMTKqxVFo&fmt=18)

I want a 100" OLED screen. Hurry up someone, stop these tiny screen sizes at once. :D

Nice updates. Keep them coming :)

Interview with David Fyfe, CDT's Chariman and CEO (http://www.oled-info.com/interview-david-fyfe-cdts-chariman-and-ceo)
19 July 2009

CDT (http://www.oled-info.com/research_ip_companies/cambridge_display_technology) is one of the leaders in OLED research, focusing on Polymer-based OLEDs. While these OLEDs are lagging behind small-molecule OLEDs in current products (all AMOLEDs today are based on SM-OLEDs), some companies believe that P-OLEDs are actually the better tech for the future.

CDT's CEO, David Fyfe has agreed to answer a few questions we had on CDT's technology. David joined CDT in 2000 as Chairman and CEO. David saw CDT go public in 2004, and then negotiated the sale of CDT to Sumitomo for $285 million (http://www.oled-info.com/cdt/sumitomo_chemical_company_to_acquire_cdt) (in September 2007). David is also a director of Soligie, an electronics printing company, Acal Energy, a fuel cell technology developer and the Plastic Electronics Foundation.

Q: David - thanks for agreeing to do this interview. Since the Sumitomo acquisition, CDT has been rather quiet... can you give us an update on where's the company now, and where's it is headed?

Since the merger of CDT into Sumitomo Chemical in September 2007, CDT has grown substantially and received considerable capital investment to enable it to remain a leading developer of P-OLED technology. It works very closely with SCC laboratories in Japan and most recently has been transferring manufacturing process knowhow to SCC's own P-OLED manufacturing development line, recently commissioned at Ehime on Shikoku, Japan.

CDT in partnership with SCC has made large strides in materials lifetimes and efficiencies. SCC prefers to take a lower profile in announcing these advances since its business model is to work with selected display maker partners in a collaborative, confidential relationship. We have also made big strides in the development of top emitting structures and in printing P-OLED displays. SCC's strategy is that CDT will continue to be its leading development center for P-OLED technology with Ehime scaling process technology to a yielding process status. CDT is also working very closely with Semprius (http://www.oled-info.com/cdt-will-use-new-printing-technology-improve-oled-performance) of North Carolina, USA to develop single crystal silicon TFT structures on which P-OLED devices can be deposited and driven – using Semprius’ proprietary stamping technology.


http://www.oled-info.com/files/images/CDT_14_Inch_Prototype_Nov_2005.JPG

CDT 14" OLED prototype November 2005

Q: It seems that OLED displays are finally entering the mainstream - we hear of new devices (mainly by Samsung, but also from Sony, Microsoft, LG and others) almost daily. What are your thoughts on this? what are the challenges that still exist for OLEDs?

Sony broke the logjam of resistance to the adoption of OLED in large displays by major display makers with the introduction of its XEL-1 11” OLED TV in 2007. Samsung SDI’s investment in small screen OLED production in 2007, based on LTPS backplanes was another major impetus. Since then, Chi Mei has brought on small OLED screen capacity, TMD (now wholly owned by Toshiba) has built an OLED line to manufacture small screens, LG Display will start up their Gen 3.5 line late this year and if press reports are to be believed, Toppoly will commission their capacity with Nokia as a lead customer and Panasonic have a major OLED development program for large OLED displays.

Samsung has rationalised the OLED interests of Samsung Electronics and Samsung SDI by the formation of Samsung Mobile Displays. In other words the major players are staking out an OLED future, some in small screens and some first in small and then targeting large screens (TVs).

Most recently, Seiko Epson has announced that it has “cracked” the issues around inkjet printing of OLED displays (http://www.oled-info.com/seiko-epson-new-inkjet-technology-enable-large-size-hd-oled-tvs) and is moving now to commercialise that technology in a business model that is not altogether clear but may well involve partnerships with other display makers.


http://www.oled-info.com/files/images/epson-14-inch-inkjet-processed-oled.jpg

Espon 14" Inkjet processed OLED


The barriers that face OLEDs are as follows:


Small molecule OLED materials performance seems to now be at a level that satisfies the majors BUT it is clear to most of them that while vacuum deposition of these materials thru’ shadow masks is OK up to Gen 4 substrate size, beyond Gen 4 it is impractical (indeed Samsung Mobile Displays, Chi Mei and LG are or will process using ½ cut Gen 3.5 or Gen 4 i.e masking the substrate in two separate operations. Nothing could more clearly show the limits of shadow masking. Thus display makers who aspire to make TVs from substrates of Gen 5.5 and larger are looking at printed solutions.


While lifetimes and efficiencies for P-OLED are now sufficient for handheld device performance and both red and green lifetimes and efficiencies are fully acceptable for TV performance, blue still lags requirements in lifetime for TV. Given the current rate of progress this is expected to be no longer an issue within the next two years.


There has been skepticism regarding the development status of inkjet printing equipment and print heads and fitness for large scale manufacturing. However, this is evaporating as experience grows of inkjet printing color filters in a number of display makers and Epson’s announcement at SID has kindled considerable interest. Dupont claims success with nozzle printing in partnership with Dai Nippon Screen.
Given the very superior characteristics of OLEDs compared to LCD and Plasma, I expect it only to be a matter of a couple of years before we see OLED TVs being offered by a number of industry players.
Q: You say that inkjet-printing OLEDs is the future, and printing SM-OLEDs is more difficult than printing P-OLEDs. Why is that?

Our view has always been that polymer bridging units would be essential to long life and high efficiency of emitters which dry from PRINTED droplets. We at CDT have spent the last three years bringing the lifetimes of inkjet printed P-OLEDs to the same level as spin coated P-OLEDs. Virtually all the data that is public for solution processed SMOLEDs is from spin coated data and what data is available from printed SMOLEDs suggests Dupont (and we have information - UDC also) is struggling with the same issue as we first addressed three years ago.
Q: UDC claims that 'virtually-all' AMOLEDs use their tech (http://www.oled-info.com/udc-reports-financial-results-say-almost-all-amoleds-use-our-tech). When will we also see AMOLED based on your P-OLED tech?

All the commercial OLED at the moment is small molecule. UDC have been supplying the red material to Samsung, LG and maybe Chi Mei but not I believe to Sony. Rumor has it that their green material is finally acceptable (suffered from instability prior to this) and that Samsung will adopt to further benefit power consumption. Sumation has red and green polymer based material which is every bit as good as UDC 's vacuum deposited performance so it is just a question as to when the printing technology is deemed fit for mass manufacturing.
Q: Panasonic announced that they are teaming up with Sumitomo for OLED TVs (http://www.oled-info.com/panasonic-teams-sumitomo-oled-tvs). Will these be using P-OLEDs? When can we except a P-OLED TV on the market?

Panasonic officially denies that the press release was theirs but detail in it suggests it was.

Note - according to Nikkei.com, Panasonic has an extensive inkjet-printing PLED program. They aim to release PLED TVs at around 2012.
Q: TMDisplay is now focusing on OLEDs, after Toshiba bought out Matsushita's part. Are they working on P-OLEDs still?

Toshiba/TMD will be working on both SMOLED and PLED technologies. The Toshiba influence in TMD was always pro-PLED but I have not seen them since the demerger from Panasonic so am not up to date with the Toshiba strategy.
Q: Any updates on the Semprious JV on printing tech?

Semprius – making excellent progress in this technology of printing the TFTs (TFTs patterned on Si wafer then released by etching and lifted from mother wafer and stamped onto the OLED display substrate resulting in single crystal TFTs – ideal for OLED driving.
Q: I wonder what are your thoughts on OLED lighting - it seems like a very exciting application for OLEDs. Will CDT be a player in this market?

OLED lighting – yes we are putting substantial effort into materials development for this application (PLED white for example but also the RGB approach is being pursued by some lighting companies). Efficiency is the issue and in my view so will processing technology. Some believe that you cannot get the economics good enough with high-vacuum processing to compete in mass lighting markets – back to the same issue as confronts small molecule in the display field.
Thanks David for this interesting interview... I wish you and CDT good luck!

Samsung SDI sees solid demand for AMOLED displays (http://www.oled-info.com/samsung-sdi-sees-solid-demand-amoled-displays)
22 July 2009

Samsung SDI posted good financial results yesterday - a 17% increase in profits. They say that demand for AMOLED displays "is looking solid".

Just last month Samsung said that they got 2M pre-orders for the JET phone, and over 1.8M pre-orders for the ultra-touch (http://www.oled-info.com/samsung-says-they-got-more-2m-pre-orders-jet-phone).

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Gravure Printing Technology application to Make OLED Panel (http://www.oled-display.net/gravure-printing-technology-application-to-make-oled-panel)
27 July 2009


http://techon.nikkeibp.co.jp/english/NEWS_EN/20090727/173446/thumb_230_1A.JPG


Dai Nippon Printing (DNP) Co. Ltd. succeeded in making a passive matrix OLED panel by using gravure printing technology. DNP has been developing a manufacturing technology based on a high-accuracy gravure printing technology that uses a polymer organic EL material and can easily make ink-like liquid from organic materials. The company modeled an OLED panel by using its dedicated gravure printer and special ink made from a polymer organic EL material on a glass substrate that measures 300 x 300 x 0.7mm.

The company prototyped the OLED panel in two sizes, 192 x 32 x 1.4mm and 110 x 37 x 1.4mm. The pixel pitches are 1.0 and 1.15mm. DNP plans to develop OLED products by utilizing the new printing technology, aiming at commercialization in 2010 and sales of about ¥1.2 billion (approx US$12.7 million) this 2012.

Advantech to build a pilot line for roll-to-roll OLED fabrication at "exceptionally low cost" (http://www.oled-info.com/advantech-build-pilot-line-roll-roll-oled-fabrication-exceptionally-low-cost)
27 July 2009


http://www.oled-info.com/files/images/advantech-4-inch-mono-amoled.jpg

Advantech 4" monochrome AMOLED

Advantech has got a 15M$ investment to build a pilot line for their roll-to-roll OLED fabrication technology. Advantech will use the line to produce OLED TV backplanes, and Electronic Shelf Labels backplanes. They say their new technology will enable fabrication at "exceptionally low cost". Advantech already produced 4" monochrome AMOLED panels (shown above).

Advantech was founded by Dr. T. Peter Brody, inventor of the Active-Matrix, and they hope to revolutionize the OLED market. The current investment round comes from the Pan family (12M$) and from Shanghai Ventures (2.1M$). The Pan family has already invested 12M$ in previous rounds.

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Solterra Signs Exclusive Licensing Agreement with University of Arizona for Printed OLEDs tech (http://www.oled-info.com/solterra-signs-exclusive-licensing-agreement-university-arizona-printed-oleds-tech)
27 July 2009

Solterra Renewable Technologies (wholly owned subsidiary of Hague Corp) today announced an exclusive worldwide licensing agreement with the University of Arizona for the patented, intellectual property covering screen-printing techniques for OLED fabrication. Solterra's CEO Stephen Squires says that there are essential similarities between the screen-printing techniques to fabricate LEDs and the screen printing technology that Solterra is currently optimizing to print quantum dots (http://www.oled-info.com/introduction-quantum-dots-interview-qd-visions-cto) to make thin-film solar cells.

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Showa Denko develops efficient phosphorescent-polymer-based OLED devices (http://www.oled-info.com/showa-denko-develops-efficient-phosphorescent-polymer-based-oled-devices)
28 July 2009


http://www.oled-info.com/files/images/SDK-coated-phosphorescent-polymer-based-oled.jpg

SDK coated phosphorescent-polymer-based OLED

Showa Denko K.K. (SDK) has developed new, efficient, coated phosphorescent-polymer-based OLEDs. The new devices achieved about 40% in light output (the quantity of light emitted from light source, divided by electric power consumed.) - which they claim is the highest level in the world. The efficiency is 30 lm/W, and the lifetime is approximately 10,000 hours.

SDK says that OLED made by coating is attracting keen attention because it consists of a few layers formed by coating polymer without the use of vacuum, providing the opportunity for substantial cost reductions and for the production of large area-emission panels in the future.

While the conventional-type device has a structure of cathode, emitter, anode, and glass substrate, the new structure has introduced a layer of dielectric/heat conductor that adjusts reflection of light. The new layer helps reduce the percentage of light trapped in the device, improving the light output. The dielectric/heat conductor layer, having high heat dissipation efficiency, prevents heat deterioration of the emitter, prolonging the device life.

SDK is working with SRI International, a non-profit US research organization and Itochu Plastics, of Japan, to promote the development of coated phosphorescent-polymer-based OLEDs for early commercialization in the OLED lighting market.

Sadly, it looks like OLED lighting won't be here soon enough for me. I am about to (within 6-12 months) remodel our kitchen and need under cabinet lighting. Since OLED is not on the market, I'll have to chose between fluorescent and LED. LED costs more, lasts longer, uses less energy, but doesn't really put out as much light as we'd like. I may go with fluorescent for a few years (unhappy experience with that) and then upgrade to OLED, if I can use the same wiring. If I go with LED, it'll be for life.

Come faster, OLED!

For lighting purposes, fluorescent is at the moment superior to OLED. Fluorescent is cheap, available in a wide variety of colours and CRIs, and is efficient and long-lasting. More efficient than either LED or OLED lighting, and higher CRI than either too.

When are 60" (+/-) OLEDs anticipated to "hit" the consumer market?

In my experience, the biggest question asked by mainstream consumer when considering purchase of a new expensive device is: how reliable is this thing. A TV that delivers a slightly worse picture quality but still works and looks like new after 5 years of service will be a whole lot more welcome than something that delivers phenomenal picture but borks out in a couple of years. Early adoters are cool, but they are relatively scarce and they don't make the weather. Generic consumer is not likely to spend upwards of a grand on unproven tech. Smaller TVs (about 20-30") in $400-500 are a much easier sell. Also, mobile devices make perfect fron-runners since consumer is primarily interested in other features of a mobile, screen taking a backstage. Many will pick up AMOLED screen units without a second thought. Yet further on, it'll give manufaturers ammo for proving OLED viability.
Anyway, OLED TVs will need to establish a proper track record as smaller/cheaper units before consumer if confident enough to buy bigger units at bigger prices. I say about 4-5 years - whcih manufacturers are likely to put to good use to recoup their investments in existing plasma/LCD lines.
So, if 20-30" OLEDs are expected around 2012, I'd say 2016-17 for consumer-targeted 55"+ units. But very likely, there will be options a la XEL-1 to buy a large OLED at a ludicrous price as early as 2013.

When are 60" (+/-) OLEDs anticipated to "hit" the consumer market?I have never seen any indication that very large screen OLED panels are being considered at this time.

For lighting purposes, fluorescent is at the moment superior to OLED. Fluorescent is cheap, available in a wide variety of colours and CRIs, and is efficient and long-lasting. More efficient than either LED or OLED lighting, and higher CRI than either too.

Thank you. But I must note, getting the thin, under cabinet lighting restricts your choices greatly. And finding well built, high quality ones - well, we've been at this for years, and are still looking.

Samsung SDI sees solid demand for AMOLED displays (http://www.oled-info.com/samsung-sdi-sees-solid-demand-amoled-displays)
22 July 2009

Samsung SDI posted good financial results yesterday - a 17% increase in profits. They say that demand for AMOLED displays "is looking solid".

Just last month Samsung said that they got 2M pre-orders for the JET phone, and over 1.8M pre-orders for the ultra-touch (http://www.oled-info.com/samsung-says-they-got-more-2m-pre-orders-jet-phone).

And they will also have the Omnia II, Omnia Pro, and Pixon 12 phones available shortly, all with 800x480 AMOLED. As well as the Omnia HD, which is already available and has a 640x360 AMOLED.

I have never seen any indication that very large screen OLED panels are being considered at this time.
EVERYTHING is being considered at this time. Including quantum computing, sustained fusion and interstellar spaceflight.

Technologies being developed today to build 20-30" rigid OLEDs within next 2-3 years all have an eye toward larger sizes, flexible substrates and higher resolutions. There is no definite time to market, but don't think those things aren't on the roadmap.

SDK develops polymer-type OLEDs with 30 lm/W efficiency (http://www.ledsmagazine.com/news/6/7/21)
29 July 2009


http://img.ledsmagazine.com/objects/news/6/7/21/SDKoled2.jpg


http://img.ledsmagazine.com/objects/news/6/7/21/SDKoled3.jpg


http://img.ledsmagazine.com/objects/news/6/7/21/SDKoled1.jpg


A new phosphorescent polymer-type device structure improves light output and heat conduction.

Showa Denko K.K. (SDK) has developed a new OLED emitter structure that has enabled an efficiency of 30 lm/W, which is claimed to be the highest level announced for phosphorescent-polymer-based OLEDs.

SDK will continue working with SRI International, a non-profit research organization based in California, U.S.A., and Itochu Plastics Inc. (CIPS), of Japan, to promote the development of coated phosphorescent-polymer-based organic EL devices for early commercialization.

Small-molecule OLEDs are manufactured using deposition processes under vacuum. The technology is well-established but costs are high and there are many issues to be solved in producing a large area-emission panel based on this device.

However, the alternative approach being pursued by Showa Denko (and others) involves coating polymer layers without the use of vacuum, providing the opportunity for substantial cost reductions and for the production of large area-emission panels in the future.

Although fluorescent-type OLEDs have longer life, and are already used in displays of mobile phones, the alternative phosphorescent-type materials can theoretically have a four-times higher emission efficiency than the fluorescent type.

The new structure of Showa Denko’s OLED device features a layer of dielectric/heat conductor that helps to reflect light out of the structure, improving the light output, and also prevents heat deterioration of the emitter, prolonging the device life.

SDK has already achieved a luminance half life of approximately 10,000 hours for white lighting through improvements in the phosphorescent-polymer materials. SDK will continue developing organic EL devices with longer life based on the successful development of the new device structure.

SDK says it will work with SRI International and CIPS to improve the design of device structure and start selling samples on a full scale in 2010 for use in the general lighting market. The three parties will also work to improve coating property of the phosphorescent polymer and prolong the device life, aiming to achieve a 150 lm/W emissive efficiency and a luminance half life of approximately 50,000 hours for white lighting by 2015.

SDK is planning to commercialize its coated phosphorescent-polymer-based organic EL devices for general lighting by achieving high levels of performance exceeding that of fluorescent lamps.

LG Display begins work on new AMOLED fab (http://www.oled-info.com/lg-display-begins-work-new-amoled-fab)
12 August 2009

LG Display are working on their new AMOLED (LTPS) fab. As we reported earlier, LG Display invested 79M$ on this new 3.5g plant (730x460mm glass substrates). It is scheduled to begin mass production in 1H 2010, and will reach a monthly capacity of 8,000 input sheets by the end of 2010.

LG Display are hoping to sign a deal to supply OLED panels to Nokia. They are also working on larger panels with plans to release 15" OLED TVs in Korea by the end of 2009, and later on introducing 32" OLED TVs in 2012.

You know the funny thing about this thread?
I've been coming to it on and off ever since people were raving about new "upcoming" holy grail technologies just around the corner, like SED and OLED.

And here the bitter sweet part, three years ago, reading this thread, I got the same optimistic impression of when I could expect to purchase these products in all their fully commercial glory. They were exactly two years off, three years ago as well as they seem to be now.

Its so depressing, SED never showed at the promised summer 2008, in fact it never showed up at all. And OLED is just getting pushed further and further back. Talking about maybe farting out at most a 37" in 2012, I mean, crap on a stick, that is far too little and entirely too late.

I hate the current LCD's, the current Plasma's seem only to impress when discussed by enthusiastic owners here and leave a lot to be desired when observed first hand.

I want to shed myself of these two techs and their respective short comings. I want OLED damn it, and I want it now, not in two years for x4 the price and half the size.

You know, if it were now I would actually consider x4 the price and half the size, but certainly not after more than 2 years of waiting, shouldn't I at least get something out of the torturous wait? All these so called breakthroughs reported here on a daily basis for more than 3 years and what is there to show for it? Tiny sub 20" useless prototypes with vague half hearted commitments to when they'll actually be available for purchase.

And SONY, don't get me started on those guys, jumping the gun with their stamp sized wonder and then nothing else for two whole years, what the hell does that tell you? Damn teases.

I wish I had a hard boot and access to the collective asses of persons responsible for this proverbial dragging of feet, because they sure seem to need some good old hard kicking.

I want to shed myself of these two techs and their respective short comings. I want OLED damn it, and I want it now, not in two years for x4 the price and half the size.

You know, if it were now I would actually consider x4 the price and half the size, but certainly not after more than 2 years of waiting, shouldn't I at least get something out of the torturous wait? All these so called breakthroughs reported here on a daily basis for more than 3 years and what is there to show for it? Tiny sub 20" useless prototypes with vague half hearted commitments to when they'll actually be available for purchase.

And SONY, don't get me started on those guys, jumping the gun with their stamp sized wonder and then nothing else for two whole years, what the hell does that tell you? Damn teases.


Boo hoo.... Sounds like you haven't seen the XEL-1 in person??? I think the XEL-1's picture is kind of a back to the future experience.... So what if Sony jumped the gun with releasing an OLED TV... it's PQ is awesome!

The number devices containing OLED displays is increasing over time. Sony just released their X-Series Walkman, Microsoft will be releasing the Zune HD next month. The fact that OLED displays are shipping in products seems to indicate that OLED TVs are just a matter of time (unlike FED/SED which are currently never going to happen). So, just be happy that OLED is gaining ground, even if it isn't as fast as you'd like. ;) :D

Also, I believe it is likely that we will hear actual product announcements for OLED TVs in 3 weeks at the IFA 2009 in Berlin (key word is likely).

You know the funny thing about this thread?
I've been coming to it on and off ever since people were raving about new "upcoming" holy grail technologies just around the corner, like SED and OLED.

And here the bitter sweet part, three years ago, reading this thread, I got the same optimistic impression of when I could expect to purchase these products in all their fully commercial glory. They were exactly two years off, three years ago as well as they seem to be now.

Its so depressing, SED never showed at the promised summer 2008, in fact it never showed up at all. And OLED is just getting pushed further and further back. Talking about maybe farting out at most a 37" in 2012, I mean, crap on a stick, that is far too little and entirely too late.

I hate the current LCD's, the current Plasma's seem only to impress when discussed by enthusiastic owners here and leave a lot to be desired when observed first hand.

I want to shed myself of these two techs and their respective short comings. I want OLED damn it, and I want it now, not in two years for x4 the price and half the size.

You know, if it were now I would actually consider x4 the price and half the size, but certainly not after more than 2 years of waiting, shouldn't I at least get something out of the torturous wait? All these so called breakthroughs reported here on a daily basis for more than 3 years and what is there to show for it? Tiny sub 20" useless prototypes with vague half hearted commitments to when they'll actually be available for purchase.

And SONY, don't get me started on those guys, jumping the gun with their stamp sized wonder and then nothing else for two whole years, what the hell does that tell you? Damn teases.

I wish I had a hard boot and access to the collective asses of persons responsible for this proverbial dragging of feet, because they sure seem to need some good old hard kicking.

This post seriously made me laugh! I was feeling the same frustration with OLED when I clicked this thread. By 2012, Panasonic will probably produce perfect or near perfect blacks, since they bought all the Kuro patents. By then, if the price of the OLEDs is not on par, it might die just like SED.

I mean, why would anyone spend 5k for a 50" OLED with perfect blacks, when you could buy a Panasonic 50" for 2k with equally perfect blacks (if they make good on the future Kuro tech)?

This post seriously made me laugh! I was feeling the same frustration with OLED when I clicked this thread. By 2012, Panasonic will probably produce perfect or near perfect blacks, since they bought all the Kuro patents. By then, if the price of the OLEDs is not on par, it might die just like SED.

I mean, why would anyone spend 5k for a 50" OLED with perfect blacks, when you could buy a Panasonic 50" for 2k with equally perfect blacks (if they make good on the future Kuro tech)?

This. By the time OLED is in large sizes and affordable, plasma will already by razor thin and produce perfect or near perfect blacks all at very affordable prices. You won't be able to bend it but who cares.

I would be interested in any OLED display equal to or larger than 40" for any price premium over any future plasma technology. Both plasma and LCD tech have matured enough that I have a fairly good idea which aspect of each are going to be improved upon going forward.

I doubt any of my gripes with LCD and Plasma will have been dealt with by 2012, specially with Plasma technology most of my reservations seem to be inherent in the way the technology works and are not fixable. And I doubt the blacks on LCD's will ever be able to satisfy me bearing in mind how little they've improved thus far.

There might not be many like me, but I want OLED, and I want it now, I am tired of waiting. Presently I would be willing to pay a significant premium for a 32-37" OLED set and I would throw my 46" LCD to the curb and stomp on it a few times for good measure.

I would be interested in any OLED display equal to or larger than 40" for any price premium over any future plasma technology. Both plasma and LCD tech have matured enough that I have a fairly good idea which aspect of each are going to be improved upon going forward.

I doubt any of my gripes with LCD and Plasma will have been dealt with by 2012, specially with Plasma technology most of my reservations seem to be inherent in the way the technology works and are not fixable. And I doubt the blacks on LCD's will ever be able to satisfy me bearing in mind how little they've improved thus far.

There might not be many like me, but I want OLED, and I want it now, I am tired of waiting. Presently I would be willing to pay a significant premium for a 32-37" OLED set and I would throw my 46" LCD to the curb and stomp on it a few times for good measure.

May I ask what bothers you about plasma? Just curious, don't own one, but from viewing them at a friends, they don't seem to have any glaring flaws. I own a Sony SXRD 50" myself that I love.

With OLED, what exactly is its superiority to PDPs other than absolute blacks? I can't think of any. Infact, OLEDs problems/flaws will only really start to surface once it hits the mass market.

OLED has true shades of colors - unlike plasma which switches pixels on and off to get greyscales. Switching pixels to get greyscales causes motion artifacts, and can even be seen on still images in dark areas due to low duty cycle. These effects are often called dither or 'noise', though they are not noise in the normal sense of the word, but switching artifacts also known as temporal aliasing.

OLED emitters can have a much wider color gamut (better purity) than plasma phosphors.

OLED doesn't flicker like plasma because it doesn't require PWM switching to obtain greyscales. Distinct and present in addition to 'noise' or temporal aliasing as mentioned above, the entire display strobes at one or more frequencies (usually 60Hz. in North America). This artifact is more visible in bright images from all distances and can causes headache and eyestrain.

OLED uses much less power than plasma because unlike plasma it does not require high voltage to ionize gas. Converting wall current to high voltage uses expensive, heavy and failure-prone circuits that waste energy during the conversion process. Plasma also uses many different high voltages, further complicating the conversion circuitry.

OLED is safer than plasma because the unit contains less high-voltage circuitry. In case of accident like water infiltration, etc. it is less likely to cause electrocution. A plasma steps up the 110-120V wall current to 600V to activate its pixels, while OLED converts its input voltage down to 12V or lower. 12V or lower cannot cause electrocution and is safe. The only dangerous circuitry in a wall-powered OLED is the small portion before and inside the step-down converter - all the rest runs at or below 12V. For OLEDs used in laptops, cellphones, and other battery-powered devices there is no dangerous voltage at all. Even compared to LCD - the majority of today's LCD small-device displays use cold-cathode high-voltage miniature fluorescent tubes for backlights and therefore also present a shock or electrocution hazard.

OLED drive circuitry lasts longer than plasma drive circuitry because its power usage and voltage are much lower, and its circuits are less complex with far fewer high-power handling components which are usually the first to fail. This means less heat generated in its circuits, lower circuit cost and fewer components to fail, thus a longer life and cheaper price than plasma drive circuitry.

OLED is lighter than plasma and can be printed on sheets 1/3mm thick. Not only sheets of glass, but sheets of plastic. Plasma being a vacuum technology requires heavy, hard glass to keep atmospheric pressure from collapsing its vacuum cells. This means lower shipping costs and therefore lower prices for OLED. As fossil fuel runs out in the coming years, shipping costs will make up more and more of the price of finished goods, therefore weight will matter more and more as part of the total cost of a display.

OLED pixels can be made in any size, from the superfine dots of a laptop display to the large pixels of a 50" TV, and thus unlike plasma can be made in all sizes from cellphone to supergiant TV. The minimum size of plasma pixels limits its market to TVs.

OLED pixels retain their efficiency no matter the size, while plasma pixels get less efficient as their size is reduced, often dramatically so, due to wall losses which de-ionize the gas and which depends on its pixels' surface area / volume ratio. A cellphone OLED display can be just as bright and efficient as a 50" OLED-TV.

Though each of these differences between OLED and plasma may seem small, taken together they add up to a significant overall difference between displays, as the many people who have seen live OLED displays can attest.

OLED has true shades of colors - unlike plasma which switches pixels on and off to get greyscales. Switching pixels to get greyscales causes motion artifacts, and can even be seen on still images in dark areas due to low duty cycle. These effects are often called dither or 'noise', though they are not noise in the normal sense of the word, but switching artifacts also known as temporal aliasing.

OLED emitters can have a much wider color gamut (better purity) than plasma phosphors.

OLED doesn't flicker like plasma because it doesn't require PWM switching to obtain greyscales. Distinct and present in addition to 'noise' or temporal aliasing as mentioned above, the entire display strobes at one or more frequencies (usually 60Hz. in North America). This artifact is more visible in bright images from all distances and can causes headache and eyestrain.

OLED uses much less power than plasma because unlike plasma it does not require high voltage to ionize gas. Converting wall current to high voltage uses expensive, heavy and failure-prone circuits that waste energy during the conversion process. Plasma also uses many different high voltages, further complicating the conversion circuitry.

OLED is safer than plasma because the unit contains less high-voltage circuitry. In case of accident like water infiltration, etc. it is less likely to cause electrocution. A plasma steps up the 110-120V wall current to 600V to activate its pixels, while OLED converts its input voltage down to 12V or lower. 12V or lower cannot cause electrocution and is safe. The only dangerous circuitry in a wall-powered OLED is the small portion before and inside the step-down converter - all the rest runs at or below 12V. For OLEDs used in laptops, cellphones, and other battery-powered devices there is no dangerous voltage at all. Even compared to LCD - the majority of today's LCD small-device displays use cold-cathode high-voltage miniature fluorescent tubes for backlights and therefore also present a shock or electrocution hazard.

OLED drive circuitry lasts longer than plasma drive circuitry because its power usage and voltage are much lower, and its circuits are less complex with far fewer high-power handling components which are usually the first to fail. This means less heat generated in its circuits, lower circuit cost and fewer components to fail, thus a longer life and cheaper price than plasma drive circuitry.

OLED is lighter than plasma and can be printed on sheets 1/3mm thick. Not only sheets of glass, but sheets of plastic. Plasma being a vacuum technology requires heavy, hard glass to keep atmospheric pressure from collapsing its vacuum cells. This means lower shipping costs and therefore lower prices for OLED. As fossil fuel runs out in the coming years, shipping costs will make up more and more of the price of finished goods, therefore weight will matter more and more as part of the total cost of a display.

OLED pixels can be made in any size, from the superfine dots of a laptop display to the large pixels of a 50" TV, and thus unlike plasma can be made in all sizes from cellphone to supergiant TV. The minimum size of plasma pixels limits its market to TVs.

OLED pixels retain their efficiency no matter the size, while plasma pixels get less efficient as their size is reduced, often dramatically so, due to wall losses which de-ionize the gas and which depends on its pixels' surface area / volume ratio. A cellphone OLED display can be just as bright and efficient as a 50" OLED-TV.

Though each of these differences between OLED and plasma may seem small, taken together they add up to a significant overall difference between displays, as the many people who have seen live OLED displays can attest.

WOW! This certainly is worthy of slapping the face of plasma fanboys! Isochroma has certainly won points in my book!

oled can show far better blacks i.e 0.0 cd/m2 and can show far brighter whites which plasmas can only dream about.
OLED don't suffer from phoshor trailing,they also look way sharper and 3d like compared to the blury traditional picture of the plasma.

WOW! This certainly is worthy of slapping the face of plasma fanboys! Isochroma has certainly won points in my book!

Resistance is futile. TV sizes will come after economies of scales hit the sweet spot(Samsung) or someone jumps the gun(Sony).

My Cowon S9 which uses AMOLED at 480x272 beats the best PDP, LCD, CRT,
LCoS, DLP, or LED TV out there in performance. No burn in, no phosphor trails,
blacks are black (not dark shade of gray or illuminated black), better
colors, no motion blur, less power hungry, etc. It will eat up and and spit out
the Pioneer Kuro Elite. Just watching the credits on this thing makes it 100x
better. Floating text anyone? This is God's answer to every cons on a television
and then some.

I used a Blu-Ray, DVD, and UMD ripped at resize to 480x272 to test with this screen
using MPEG-4.

WOW! This certainly is worthy of slapping the face of plasma fanboys! Isochroma has certainly won points in my book!
Plasma fanboys will continue to enjoy their big plasma sets for many years before OLED is a viable tech.

And besides, doesn't everything Isochroma posted also point to OLED's superiority over LCD? Doesn't the fact that the first real application of OLED is in small displays (see upcoming Zune HD) point to OLED first displacing LCD for small devices, then small TVs? If I was a weird LCD fan I'd be more worried about it doing away with LCD than happy about what it may eventually do to plasma.

jeff

May I ask what bothers you about plasma? Just curious, don't own one, but from viewing them at a friends, they don't seem to have any glaring flaws. I own a Sony SXRD 50" myself that I love.

With OLED, what exactly is its superiority to PDPs other than absolute blacks? I can't think of any. Infact, OLEDs problems/flaws will only really start to surface once it hits the mass market.

Well, to me personally, the things that bothered me enough on my previous PDP display enough to make want to try LCD when I had to upgrade were the following.

The most annoying things were reflections, because in the daylight my Plasma was unwatchable, since it faced a window. That is why I bought the SONY semi-matte LCD's which are excellent in that regard and I doubt I will ever be able to go back to glossy, even if they do deliver better colours unfortunately. So that is one chalked up for the fact that there are no matte displays in the Plasma world, even though they do have AR coating.

Now, that might actually be fixable on Plasma in the future if NeoPDP delivers in its promises of much brighter whites, which it has not as of yet as I understand.

Now the second most annoying thing and one I doubt will be able to go away completely ever is image retention. The fact that static images will leave a trace behind if displayed for a while, which is quite annoying because I game a game a lot and every time I see IR I cringe and am reminded of a display shortcoming until it fades away.

Thirdly, and this is a personal thing, we have not so much phosphor trails but an effect that they cause which I have not seen discussed here much. It is specially visible to me in games where I can turn the camera at will and though Plasma is suppose to handle motion better I suspect because of the different rate with which different colours turn off on plasma motion such at panning seems strangely jerky to me whereas on LCD is seems uniform and I find that I don't mind the LCD blur for some reason.

Then there is one last thing, one that basically prevented me from getting a Kuro and which shocked me when I finally managed to observe one in a store after hearing so much raving about them in the Plasma board. When I witnissed the 5020 in a store, hooked up to a Blu-ray player I was dumbfounded by how terribly grey and glowing the blacks were.

It was so contrary to what I had been led to believe that I asked for the remote and played with all the settings, and even ended up turning everything (brightness, contrast, picture mode) down as far as it could go but the blacks remained abysmal.

I suspect the terrible blacks were caused by the Plasma cells catching and reflecting ambient light so as to appear grey, where for an example in a completely dark room there might only be left the actual glow of the display, never the less, after so much raving and not mention of this effect and remembering all the other above flaws that I had to suffer through with Plasma I basically changed my mind and went with an Z series SONY LCD, hoping to tie me over until CES 2009 had SONY and others announced forthcoming OLED's.

The lo and behold the entire industry just side stepped OLED come CES due to changed plans because of the changing economy. Now I am stuck with a LCD I know cannot tie me over longer that it has, because I hate its blacks, and not much else to take its place.

I am going to sell my LCD off cheap in the coming days and then I'll wait for that trade show to see if anyone announces a release date for above 30" sets and then I'll get the largest from either SONY or Samsung. If nothing shows, as I suspect I guess I'll just get an XBR8 and hope its blacks are better enough to tie me over at least a year or two more, because it seems to me the display industry is now in the process of rolling back over quality in the upcoming year.

I am going to sell my LCD off cheap in the coming days and then I'll wait for that trade show to see if anyone announces a release date for above 30" sets and then I'll get the largest from either SONY or Samsung. If nothing shows, as I suspect I guess I'll just get an XBR8 and hope its blacks are better enough to tie me over at least a year or two more, because it seems to me the display industry is now in the process of rolling back over quality in the upcoming year.
Money is relative (some have alot more than others) but IMO why would anyone want to upgrade.

As much as members hate to hear Auditor's stuff he's right on. The current technologies won't cut it.

I'm waiting for some new tech.

Money is relative (some have alot more than others) but IMO why would anyone want to upgrade.

As much as members hate to hear Auditor's stuff he's right on. The current technologies won't cut it.

I'm waiting for some new tech.

I want to upgrade because I cant stand my current LCD and I know there is something better available for purchase. I really cant see myself suffering through the glowing blue blacks of the Z series longer, they bothered me from day one and though the XBR8, like anything else out there, produces something a far cry from absolute black I have observed it to do better than the Z at least, and not by little.

WOW! This certainly is worthy of slapping the face of plasma fanboys! Isochroma has certainly won points in my book!

No need to think OLED is disliked by Plasma owners. In fact, the reverse is true. Plasma owners in general are "videophiles" and want the very best PQ no matter what the video technology is named. OLED seems to be what the future holds, and am looking forward to seeing its full development and implementation. If anything, it is LCD Mfg'ers that should be worried about OLED, as this will be their main competitor in the near future. Once OLED gets ramped up, LCD will no longer be the desired video tech for cellphones, PDA's, laptops, or anything with smaller screen sizes under 50". So in fact, it is OLED that will kill off LCD in the market, not Plasma large screen TV's.

Although now I'm using (or will be using after I pick it up from the store tonight) a Plasma, I don't feel bad about it because OLED isn't out.

I'll definitely get an OLED, if it really does turn out to be the Holy Grail of picture technologies, once it comes in a decent size and has a decent price. (Yes, I'm aware it'll probably be a couple of years after they come out with decent sizes that the prices will go down... but good things come to those who wait!! Or maybe I'll just blow my money and be an early adopter, if they're THAT good, LOL.. :D)

well plasma owners complain about the 3d like sharp crisp image of a lcd,if anyone here have seen Oled displays they give the same effect,with quite lot more contrast.

well plasma owners complain about the 3d like sharp crisp image of a lcd,if anyone here have seen Oled displays they give the same effect,with quite lot more contrast.

Well, I guess once OLED kills off LCD in the marketplace, it'll still be nice to have a choice of different video technologies & pricing. The OLED displays will most probably be the "top tier" displays, and the less expensive displays would be Plasma TV's in the 50+" size. The larger screen sizes for OLED will be the last frontier, and their initial market dominance will begin in small screen sizes, which is the primary market for LCD at this time. For LCD, the end is near.:D

well plasma owners complain about the 3d like sharp crisp image of a lcd,if anyone here have seen Oled displays they give the same effect,with quite lot more contrast.

What? I like plasma much more than LCD, and to me OLED gives off the same impression as a good plasma display, only better.

Well, I guess once OLED kills off LCD in the marketplace, it'll still be nice to have a choice of different video technologies & pricing. The OLED displays will most probably be the "top tier" displays, and the less expensive displays would be Plasma TV's in the 50+" size. The larger screen sizes for OLED will be the last frontier, and their initial market dominance will begin in small screen sizes, which is the primary market for LCD at this time. For LCD, the end is near.:D

well going by the decling sales of plasmas,it will be EOL sooner then OLED becomes mainstream,my guess is lcds will sell beyond 2020.

What? I like plasma much more than LCD, and to me OLED gives off the same impression as a good plasma display, only better.

OLED certainly has deep blacks like a plasma,actualy much better blacks,but it does look more 3d like then plasmas,just like lcds.

The OLED displays will most probably be the "top tier" displays, and the less expensive displays would be Plasma TV's in the 50+" size.

Plasma Panel Shipment Growth Decelerates, Says iSuppli (http://techon.nikkeibp.co.jp/english/NEWS_EN/20090325/167716/)

Mar 25, 2009
"For now, the sweet spot for plasma has moved to the 50-inch and larger market, where the cost benefits of choosing plasma give it an advantage over LCDs," Patel said. "But, just as in the 42-inch size, this advantage eventually will evaporate."

OLED isn't going to kill LCD anytime soon. Maybe within 15-20 years OLED will exceed LCD shipments.

well going by the decling sales of plasmas,it will be EOL sooner then OLED becomes mainstream,my guess is lcds will sell beyond 2020.



OLED certainly has deep blacks like a plasma,actualy much better blacks,but it does look more 3d like then plasmas,just like lcds.

What do you mean by 3d?

OLED will hurt LCD far before even a single plasma sale is disrupted by its presence. LCD cameras, camcorders, cell phones, PDAs etc are already beginning to transition to OLED. PC/laptop screens will follow, and then small screen TVs. All of these are currently the domain of LCD.

Big screen LCD exists in large part because of the technology's dominating presence in the small screen market. Once OLED gobbles up significant small screen marketshare, the future of LCD televisions will be scarcely brighter than that of plasmas.

oled can show far better blacks i.e 0.0 cd/m2 and can show far brighter whites which plasmas can only dream about.

Plasma has already achieved 0.0 cd/m2 blacks.

OLED don't suffer from phoshor trailing,they also look way sharper and 3d like compared to the blury traditional picture of the plasma.

So you've seen a 50"+ 1080p OLED in person? Or are you basing this on the miniscule 11" XEL-1 that's in many stores?

Plasma has already achieved 0.0 cd/m2 blacks.

I'm pretty sure that these claimed 0 cd/m² plasmas have mis/nonfire problems.

PDP will always look hazy because of dithering.

I'm pretty sure that these claimed 0 cd/m² plasmas have mis/nonfire problems.

And patent applications were already filed containing workarounds for this problem.


PDP will always look hazy because of dithering.

:rolleyes:

And patent applications were already filed containing workarounds for this problem.

So it basically confirms it. Just like dithering is a "workaround".

Plasma Panel Shipment Growth Decelerates, Says iSuppli (http://techon.nikkeibp.co.jp/english/NEWS_EN/20090325/167716/)

Mar 25, 2009


OLED isn't going to kill LCD anytime soon. Maybe within 15-20 years OLED will exceed LCD shipments.

You better get a grip. Who do you think makes all those itty bitty video screens? LCD, that's who..and just who do you think will be losing all that marketshare when OLED replaces them?...LCD, that's who. Dude, Wake up and smell the frack'in coffee! LCD is doomed, and their time is near at end.

So it basically confirms it. Just like dithering is a "workaround".

Yes, it's exactly the same.

Perhaps you could actually read the patent applications and educate yourself instead of spouting unbridled nonsense.

You better get a grip. Who do you think makes all those itty bitty video screens? LCD, that's who..and just who do you think will be losing all that marketshare when OLED replaces them?...LCD, that's who. Dude, Wake up and smell the frack'in coffee! LCD is doomed, and their time is near at end.

LCD market is huge. There's no OLED capacity to kill LCD.

Plasma has already achieved 0.0 cd/m2 blacks.



So you've seen a 50"+ 1080p OLED in person? Or are you basing this on the miniscule 11" XEL-1 that's in many stores?

well plasma including the KURO cannot show 0.0cdm/2.

well i have seen a 27" OLED ,apart from the 11",they certainly look better then a similar sized lcd i.e with blacker blacks,better viewing angles,but they sure looked more sharp and 3d like ,unlike plasma.

well plasma including the KURO cannot show 0.0cdm/2.

well i have seen a 27" OLED ,apart from the 11",they certainly look better then a similar sized lcd i.e with blacker blacks,better viewing angles,but they sure looked more sharp and 3d like ,unlike plasma.

Hey that's great, and look forward to seeing them replace LCD's in the marketplace. About time we had a decent small screen TV to buy.

well plasma including the KURO cannot show 0.0cdm/2.

Pioneer achieved it. It just didn't make it to market before they exited the business.

they sure looked more sharp

So you've seen it next to a 27" plasma?

Sharpness comparisons are worthless unless you're comparing equal size and resolution.

So you've seen it next to a 27" plasma?

Sharpness comparisons are worthless unless you're comparing equal size and resolution.

I've seen similar sized Plasma and LCD next to each other and as anyone will say LCD certainly look sharper than Plasma, that is just how reality plays out. Now, I have not seen an actual OLED, but I image the person whose seen the 27" OLED knows what a LCD of similar size looks like and I think he could vouch for it looking, if not better, then at least equally sharp as an LCD. That train of deduction leads us to the conclusion of OLED having the characteristic of a sharper looking image than Plasma.

But who cares in the end, I don't think anyone is in here who isn't anticipating OLED so they can quit current technologies such as LCD and Plasma, at least I know I am.

I've seen similar sized Plasma and LCD next to each other and as anyone will say LCD certainly look sharper than Plasma, that is just how reality plays out.

This is not my experience when both are properly adjusted to defeat edge enhancement (sharpness). It's also model dependant.

This is not my experience when both are properly adjusted to defeat edge enhancement (sharpness). It's also model dependant.

Who cares. When you are adding noise=dithering to the image there's no possibility for image to be as clear, sharp or 3d-like as without the added noise.

I don't see any dithering effects from beyond 7' on my screen. It looks as clear as when I'm using my LCD.

when OLED finally gets to market with the PQ, black levels etc. that everybody is waiting for the price will kill it at first.
This has happened with every new technology that has ever hit the market. Unfortunately the PRICE MAKES IT PROHIBITVE AT FIRST.


BOTTOM LINE: Between the perfection of the technology & the anticipated opening high price, OLED is a few years away

So you've seen it next to a 27" plasma?

Sharpness comparisons are worthless unless you're comparing equal size and resolution.

well rhe OLED looks sharper then a similar sized lcd,we know that lcds looks sharper then a similar sized plasma,hence a similar sized 50" OLED will look even sharper then a lcds which in turn looks way sharper then a plasma.

I was searching google when I stumbled upon this (http://www.geek.com/articles/chips/sony-displays-a-24-inch-oled-prototype-20030613/), look at the date, its from 6 years ago, really puts things in perspective relative to the sluggish nature of OLED technology advancement.

You better get a grip. Who do you think makes all those itty bitty video screens? LCD, that's who..and just who do you think will be losing all that marketshare when OLED replaces them?...LCD, that's who. Dude, Wake up and smell the frack'in coffee! LCD is doomed, and their time is near at end.

I'm glad. LCD is bad idea that needs to go away. It reminds me of the story of the empreror who pretended to have beautiful clothes, when he didn't. It always needs a new "band-aid" workaround to problems, while other technologies like plasma have no problem with, without a promise of to fix the problem without giving up some other desirable trait. Right now, LCD technology can either give you rapid response OR wide viewing angle, for example. Take your pick, just remember you can't have it all. Afterall, it's LCD.

I was searching google when I stumbled upon this (http://www.geek.com/articles/chips/sony-displays-a-24-inch-oled-prototype-20030613/), look at the date, its from 6 years ago, really puts things in perspective relative to the sluggish nature of OLED technology advancement.

OLED is a victim of the bad economy the last few years. Sony was losing money on the Playstation 3 since at least 2006, not including the expensive development costs involved for it. Now maybe Sony can concentrate on the OLED development more, and re-establish their priorities.

I'm glad. LCD is bad idea that needs to go away. It reminds me of the story of the empreror who pretended to have beautiful clothes, when he didn't. It always needs a new "band-aid" workaround to problems, while other technologies like plasma have no problem with, without a promise of to fix the problem without giving up some other desirable trait. Right now, LCD technology can either give you rapid response OR wide viewing angle, for example. Take your pick, just remember you can't have it all. Afterall, it's LCD.

too bad plasmas don't have any problems and lcds outsell plasmas by a huge margin.

OLED is the perfect display technology: flexible, lightweight, perfect PQ, energy efficient, perfect viewing angles, thin, everything... Plasma cannot compare. The only advantage of a plasma is perfect PQ; otherwise, they are large and heavy space heaters that are prone to problems and failure over time.

I wouldn't be surprised if OLEDs are used for decades to come. I predict that OLED display glasses will be made since they can have dense pixel pitch. It'd be great to one day watch a perfect 100" TV through some glasses.

At this point, I guess the only setback is the short lifespan of the emitters.

OLED has true shades of colors - unlike plasma which switches pixels on and off to get greyscales. Switching pixels to get greyscales causes motion artifacts, and can even be seen on still images in dark areas due to low duty cycle. These effects are often called dither or 'noise', though they are not noise in the normal sense of the word, but switching artifacts also known as temporal aliasing.

OLED emitters can have a much wider color gamut (better purity) than plasma phosphors.

OLED doesn't flicker like plasma because it doesn't require PWM switching to obtain greyscales. Distinct and present in addition to 'noise' or temporal aliasing as mentioned above, the entire display strobes at one or more frequencies (usually 60Hz. in North America). This artifact is more visible in bright images from all distances and can causes headache and eyestrain.

OLED uses much less power than plasma because unlike plasma it does not require high voltage to ionize gas. Converting wall current to high voltage uses expensive, heavy and failure-prone circuits that waste energy during the conversion process. Plasma also uses many different high voltages, further complicating the conversion circuitry.

OLED is safer than plasma because the unit contains less high-voltage circuitry. In case of accident like water infiltration, etc. it is less likely to cause electrocution. A plasma steps up the 110-120V wall current to 600V to activate its pixels, while OLED converts its input voltage down to 12V or lower. 12V or lower cannot cause electrocution and is safe. The only dangerous circuitry in a wall-powered OLED is the small portion before and inside the step-down converter - all the rest runs at or below 12V. For OLEDs used in laptops, cellphones, and other battery-powered devices there is no dangerous voltage at all. Even compared to LCD - the majority of today's LCD small-device displays use cold-cathode high-voltage miniature fluorescent tubes for backlights and therefore also present a shock or electrocution hazard.

OLED drive circuitry lasts longer than plasma drive circuitry because its power usage and voltage are much lower, and its circuits are less complex with far fewer high-power handling components which are usually the first to fail. This means less heat generated in its circuits, lower circuit cost and fewer components to fail, thus a longer life and cheaper price than plasma drive circuitry.

OLED is lighter than plasma and can be printed on sheets 1/3mm thick. Not only sheets of glass, but sheets of plastic. Plasma being a vacuum technology requires heavy, hard glass to keep atmospheric pressure from collapsing its vacuum cells. This means lower shipping costs and therefore lower prices for OLED. As fossil fuel runs out in the coming years, shipping costs will make up more and more of the price of finished goods, therefore weight will matter more and more as part of the total cost of a display.

OLED pixels can be made in any size, from the superfine dots of a laptop display to the large pixels of a 50" TV, and thus unlike plasma can be made in all sizes from cellphone to supergiant TV. The minimum size of plasma pixels limits its market to TVs.

OLED pixels retain their efficiency no matter the size, while plasma pixels get less efficient as their size is reduced, often dramatically so, due to wall losses which de-ionize the gas and which depends on its pixels' surface area / volume ratio. A cellphone OLED display can be just as bright and efficient as a 50" OLED-TV.

Though each of these differences between OLED and plasma may seem small, taken together they add up to a significant overall difference between displays, as the many people who have seen live OLED displays can attest.

Thank you. Great post. Of course, how dare you interrupt some folk's emotionally held beliefs with FACTS! ;)

Plasma fanboys will continue to enjoy their big plasma sets for many years before OLED is a viable tech....



Viable? How about the millions of OLED screens on cell phones, PDAs, etc?



...As much as members hate to hear Auditor's stuff he's right on.....

You mean about how he insists SED is coming? OLED is probably IT, folks. It works today, it only needs scaling up. More of a technology issue than a scientific one. Plasma has been declining. OLED is easier to see in daylight than plasma. Eventually, based on cost/performance, LCD will decline and maybe disappear.

On to the holosuite!

You mean about how he insists SED is coming? OLED is probably IT, folks. It works today, it only needs scaling up. More of a technology issue than a scientific one. Plasma has been declining. OLED is easier to see in daylight than plasma. Eventually, based on cost/performance, LCD will decline and maybe disappear.

On to the holosuite!

I'm confused, is there someone out there who thinks LCD -- or any technology -- will last forever?

Liquid-OLED Offers More Light-Emitting Possibilities (http://www.physorg.com/news169466260.html)
14 August 2009


http://www.physorg.com/newman/gfx/news/hires/liquidoled.jpg

The new liquid-OLED has a liquid semiconducting
layer made of EHCz doped with rubrene.
Liquid-OLEDs could offer improved device reliability
and greater flexibility

As organic light-emitting diodes (OLEDs) are poised to go mainstream in the near future, scientists continue to explore new twists on the technology. Recently, researchers have fabricated a "liquid-OLED" - an OLED that uses a liquid organic semiconducting layer to transport charge.

The scientists, Denghui Xu and Chihaya Adachi from the Center for Future Chemistry at Kyushu University in Fukuoka, Japan, have reported the liquid-OLED in a recent issue of Applied Physics Letters. As they explain, the novel design is based on a liquid-emitting layer, and could have advantages for flexible displays and other organic electronics applications.

Usually, OLED displays use solid-state organic films that give off light when an electric current is applied. One significant benefit of OLED displays compared to traditional liquid crystal displays (LCDs) is that OLEDs do not require a backlight. For this reason, OLEDs can be made very thin and flexible, as well as use less power, enabling them to run longer on a single battery charge.

The new liquid-OLED could achieve these same benefits, but by using a liquid organic semiconductor instead of the solid-state films. Other than a few previous studies that have investigated using polymer solutions as the semiconducting layer, this is the first time that researchers have attempted to fabricate a practical liquid semiconductor for OLEDs.

As Xu and Adachi explain, their device uses ethylhexyl carbazole (EHCz) as the liquid semiconducting layer due to its high hole mobility, which is associated with good electrical conductivity. The scientists doped the EHCz with solid rubrene, which has a high photoluminescence efficiency. They then prepared a substrate with this liquid mixture placed in between an anode and cathode, which in turn were sandwiched by glass layers. When testing the device, the researchers observed electroluminescence from rubrene with the naked eye.

“Since EHCz provides hole transport and rubrene does electron transport and emitting functions, the combination leads to electroluminescence,” Adachi told PhysOrg.com.

The researchers hope that, by taking advantage of the new device’s unique liquid properties, they can make further improvements in OLED technology. For instance, liquid semiconductors could easily fill the space between two electrodes in curved structures without cracking or shortage problems. The researchers also suggest that the liquid semiconductors could be circulated or refilled into the active emitting layer. This constant, fresh supply of semiconductors could improve device reliability and reduce degradation.

“This is quite a new concept, realizing truly flexible and degradation-free OLEDs,” Adachi said. “Although the electroluminescence efficiency is still low level, we can surely improve it by optimizing the device parameters and organic semiconductors.”

More information: Denghui Xu and Chihaya Adachi. “Organic light-emitting diode with liquid emitting layer (http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=APPLAB000095000005053304000001)” Applied Physics Letters 95, 053304 (2009).

LCD market is huge. There's no OLED capacity to kill LCD.

Not for long...best get ready for the onslaught. There will be NO market for LCD once OLED gets ramped up. Everything that uses an LCD today, will be OLED tomorrow. Good riddance, and looking forward to those OLED displays!:D

The problem that OLED is going to have at first is pricing. And Samsung noted in one of their press releases that consumers may not buy in to OLED if they can't see a big difference between current flat panels and OLED on those bright showroom floors. Many of us know that LCDs flaws don't show up until you get them in typical home environments.

Both LCD and plasma have flaws. I'd be glad to see OLED make it as well (at an affordable price though;)).

Uh oh... looks like this thread needs to be split out... as many of the posts lately are off topic with this thread:
OLED TVs: Technology Advancements Thread
:eek:
Speaking to the demise of LCD and Plasma isn't an OLED TV Advancement... but now that I word it like that... ;)

Sony, Stung by Losses, Delays Thin TV (http://online.wsj.com/article/SB125053074821237541.html)

Sony will delay the launch of its next organic light emitting diode, or OLED, television because mass producing the new displays would exacerbate losses at its TV division, according to people familiar with the matter.

The company had been targeting a 2009 release for a larger successor to a model with an 11-inch screen released in late 2007, which is the first and only OLED TV to reach stores so far. That model's screen is three millimeters thick. But Sony has decided to push back the new model until at least next year, these people said.

The challenge thus far has been driving down manufacturing costs, because materials are hard to procure and production systems remain a work in progress.

Research firm DisplaySearch estimates Sony's production yield for its 11-inch OLED panel is below 60%, meaning at least four of every 10 panels its factories produce aren't up to par and can't be sold. Larger panels would likely introduce more difficulties.

I apoligize if this has already been posted but I thought it gives a good idea on power requirements for OLED. I wonder if the whites will be scaled back on OLED (probably still brighter than Plasma) in order to keep the power requirements low.

http://static.arstechnica.com/amoled.jpg

I apoligize if this has already been posted but I thought it gives a good idea on power requirements for OLED. I wonder if the whites will be scaled back on OLED (probably still brighter than Plasma) in order to keep the power requirements low.

http://static.arstechnica.com/amoled.jpg

Why? Its not like people spend a lot of time watching full white screens. Besides, I've seen the page you got those measurements from and they are taken off of cheap inferior tiny OEM OLED modules that often can only display 64k colours and still suffer from burn in/image retention.

The stuff SONY and Samsung are working on are on a whole other level, I am sure they are much more efficient as well since they are many generations ahead.

Why? Its not like people spend a lot of time watching full white screens. Besides, I've seen the page you got those measurements from and they are taken off of cheap inferior tiny OEM OLED modules that often can only display 64k colours and still suffer from burn in/image retention.

The stuff SONY and Samsung are working on are on a whole other level, I am sure they are much more efficient as well since they are many generations ahead.

I am sure the small LCD screens cannot compare to the large LCD TVs as well. One of the complaints for plasmas is that brightness is reduced in scenes with a lot of whites (ie. hockey & snow scenes). The same could apply to OLED due to the same limitations. It is not an issue for me (I own a plasma) but for others it is make or break. It all depends on how OLED is implemented for TVs and what emphasis is place on performance vs energy efficiency.

OLED power consumption increases with moving video. On a Cellphone most of the time a static image is being shown.


The Sony XEL-1 has very high power consumption compared to LCD displays, and it isn't even full HD.


I'm sure eventually OLED will get into parity with LCD, but that is going to be a few years down the road.

If that is true then its almost comical because all the so called lauded advantages of OLED seem to be all imaginary in practice. Lets run thought the list shall we, they were supposed to be cheaper, and easier to manufacture. This has so far proven to be so false that in the past 4-5 years actual OLED products have consistently been pushed back and the current single only OLED TV on the market costs a few orders of magnitudes more than a comparable LCD product.

They were supposed to be more energy efficient, but that also seems to leave a lot to be desired in implementation so far. Longevity? Well we all know about the so called Blue LED life time problem. Better motion resolution? well I remember there being talk of that maybe not being true either, at least not in AMOLEDS due to the way the circusy firing the pixels work, which does so in a similar manner to LCD.

Better color gamut? Well, if we are looking at a 2012-2015 launch date I shudder to think how closely LCD and Plasma manufacturers might have closed the gap. This is starting to remind me of SED, the technology was good but when they got around to maybe selling them the competing tech had gotten so much cheaper, and improved so much that it was not economically viable any longer

I think OLED might end up the same way with all these damn delays.

Yes, all along it has been the expectation that OLED will eventually be cheaper than LCD and easier to manufacture. Basically on a sorta ink jet process. They know in theory this can be done, and over the years no doubt will be. Developing and fine tuning manufacturing processes will take time.

But think how much faster display technologies seem to be developing today, compared to the progress of CRTs during their development process.

I think you miss my point, I know that all the lauded benefits can be brought out if OLED is allowed as much time as, say, LCD, to mature. But, like SED, due to the constant delays it seems the windows of opportunity has already passed it by.

Only the accelerated development through mass production could have advance OLED enough to reach saturation in terms of maturity. But since OLED has been largely side stepped for many years while LCD has gone full steam ahead any manufacturer that 4-5 years ago was looking at the long term advantages of OLED and pouring millions of dollars of into its research now has to take a long hard look and be faced with the fact that for the millions invested OLED has hardly progressed while LCD is already well on its way to delivering on most of those advantages, already has a proven track record, properly set up and working infrastructure etc. etc.

I am worried that at this rate big screen OLED TV's might continue being vaporware for a long, long time to come of not for ever. Think about it, say Samsung launches their 31-32" LED series this year or next with a hefty premium, are they going to sell any?

I doubt it, the people who are the bread and butter of companies like Samsung are a different breed than us AV enthusiasts who know the benefits unseen and would line up in a sec. At this point, with most people thinking LED backlight LCD's being OLED for all they care and doubting if untrained eyes can even spot a major difference between a LED backlight LCD and a OLED set in a store environment they'll hardly sell any.

They waited too long, I think its too late now. At best we can hope for they find a niche in the handset and perhaps laptop screen arena within the next 2 years.

Only the accelerated development through mass production could have advance OLED enough to reach saturation in terms of maturity. But since OLED has been largely side stepped for many years while LCD has gone full steam ahead(...)

C'mon, OLED has not been largely side stepped for many years. Big OLED panels' schedule seems to have been delayed, better, predictions of where big OLED panels would be available have been "revised". It doesn't mean that smaller production oled screens will stop growing exponentially, as they have been doing...

I know this is basically a "TVs" forum, but OLED hasn't been side stepped at all. It's just that OLED is going to get mature in smaller panels (Which is something we already KNEW)

C'mon, OLED has not been largely side stepped for many years. Big OLED panels' schedule seems to have been delayed, better, predictions of where big OLED panels would be available have been "revised". It doesn't mean that smaller production oled screens will stop growing exponentially, as they have been doing...

I know this is basically a "TVs" forum, but OLED hasn't been side stepped at all. It's just that OLED is going to get mature in smaller panels (Which is something we already KNEW)

I am not so convinced that mobile phone sized panel production is helping TV sized ones at all. As if that were true it already would have. Small screen productions aren't anywhere they should be either. I think when Apple starts using them in their iPods and iPhones then we are moving in the right direction. Then maybe MacBooks would be next and those sizes are close enough to help TV productions. But so far only a few low selling obscure devices with OLED screens.

08/19/2009

DisplaySearch has released a new report (small/medium TFT LCD and AMOLED product roadmap (http://www.displaysearch.com/cps/rde/xchg/displaysearch/hs.xsl/090819_small_medium_tft_lcd_amoled_display_technology_produc tion_undergoing_great_changes.asp)). They give an interesting chart showing AMOLED roadmap from all players:

http://www.displaysearch.com/images/DisplaySearch_AMOLED_Product_Roadmap_by_Suppliers_2008-2011_090818.png

There is a lot of interesting information in there:

•It seems that LG are working on 13.3" wide panels for laptops, to be released at the end of 2009. LG Display themselves say they are working on 15" panels.
•The next Sony OLED TV (XEL-2?) will have a 30" panel, and not 27" or 21" as previously assumed. We already know that Sony are delaying their new TV, and DisplaySearch think they will launch it at the second half of 2010.
•In the second half of 2010, DisplaySearch sees LG Display shipping a 17" wide panel for laptops, Sony with a 30" LTPS OLED TV, and CMEL with a 11" notebook panel and 20"-30" OLED TVs.
•According to this table, Samsung will not launch a large OLED panel - not until 2012 at least. This is strange as they claim they have production-ready 14.1" and 32" OLED TVs.
•In 2010 we'll see several new companies working on OLED for mobile devices - TPO, TM Display, AUO. This is great news and will probably lower prices and create a bigger demand for OLEDs.

via OLED-Info.com (http://www.oled-info.com)

Nasty rumor about larger Sony OLED display, It will not come out Q4 this year as projected, because it would place too much stress on Sony's TV division (which is already having profit problems).:D

Hmmmm, 13.3" eh? That is the same size as my crappy MacBook screen, I hope a ultra expensive screen option is about to show up on Apple's order page. I know I would ditch my current Laptop in favour of such an upgrade.

It's probably for MacBook Air at first.

To some of us, OLEDs, esp larger sizes, seem to be coming on FASTER than expected.

The table shows SMD, which is Samsung Mobile Devices. They are a separate unit from the one that will make the big displays. The table conveniently omits Samsung's main display unit entirely, which accounts for the missing 14.1" and 32" OLED TVs. Of course since an exact date hasn't been announced, even for planning purposes, the authors have an excuse for not including it.

After year 2010, we can expect even more OLED improvements as well as releases.

Go OLED!!!!! :)

OLED, E-paper Displays Come a Step Closer to 3D (http://techon.nikkeibp.co.jp/english/NEWS_EN/20090223/166150/)
24 February 2009


http://techon.nikkeibp.co.jp/english/NEWS_EN/20090223/166150/spin.jpg


Eiji Shikoh, an assistant professor at the Japan Advanced Institute of Science and Technology, developed an OLED device that emits circularly polarized light in the visible light range.

It is a basic technology to enable 3D representation on OLED and electronic paper displays. To produce the circularly polarized light in the visible light range, the spin state during the light emission process is controlled by injecting a spin-polarized carrier from the ferromagnetic negative electrode into the emission layer.

For the future, Shikoh intends to increase the degree of circular polarization so that two components, the right and left circularly polarized light, may be clearly differentiated. Through this method, he aims to realize 3D display by producing parallax images that have different information in each component.

In general, OLED devices use a nonmagnetic material such as aluminum (Al) for their negative electrodes. But the new technology uses a ferromagnetic material such as iron (Fe) for the negative electrode in order to inject spin-polarized electrons from the ferromagnetic negative electrode into the emission layer.

As a result, light emission with a circular polarization degree of about 0.5% was observed when a magnetic field intensity of 3,000Oe is applied at room temperature, Shikoh said.

It has been known that GaAs-based inorganic LEDs produce circularly polarized light by the spin injection into the emission layer. However, those LEDs cannot be used for displays, etc because they emit light in the infrared range. Moreover, the base material has to be changed in order to precisely control the colors of light emitted by inorganic light emitting devices.

With organic molecules, it is possible to precisely control the emission color by changing the functional group, Shikoh said.

The research was conducted as part of the Industrial Technology Research Grant Program promoted by Japan's New Energy and Industrial Technology Development Organization (NEDO).

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Samsung and LG Display show AMOLED TVs at IFA-2009 (http://www.oled-display.net/samsung-and-lg-display-show-amoled-tv-at-ifa-2009)
24 August 2009


http://www.oled-display.net/files/u1/samsung-31-inch-oled-side-view.jpghttp://www.oled-display.net/files/u1/samsung-shows-31-inch-oled-ces-2008.jpg

Left: Samsung 31" OLED (Side View)
Right: Samsung 31" OLED (Front View)

http://www.oled.at/images/lg-oled-panel-15-inch-2009.jpg

LG 15" OLED

http://www.oled-display.net/images/lg-amoled-tv-full-hd-front.jpg

LG 15" OLED

http://www.oled-display.net/images/oled-tv-from-lg-ces-2009.jpg

LG 15" OLED

http://www.oled-display.net/images/lg-amoled-ces-2009-thinnest.jpg

LG 15" OLED Thickness

The chic, ultra-slim OLED TVs employ AM OLED panels developed by Samsung SDI, a Samsung affiliate dedicated to display production. The finished products weigh some 40 percent less than other LCD TVs of the same size while boasting a contrast ratio of 1 million to one, color gamut of 107% and brightness of 550nit. Samsung will begin commercial production of mid- to large-sized OLED TVs around 2010.

The 15-inch screen from the LG-AMOLED TV is just 0.8 millimeters and has a 1,366 pixel by 768 pixel resolution and has a lifetime of 30,000 hours.

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Panasonic to Build up 3-D with “Avatar and OLED” (http://www.oled-display.net/panasonic-to-build-up-3-d-with-%E2%80%9Cavatar-and-oled%E2%80%9D)
25 August 2009


http://i30.tinypic.com/3010x86.jpg


A stunning and extraordinary exposition this fall by Panasonic will give us a full blast of the technology playing the movie in very distinctively designed trailer vans in the United States as well in Europe. Panasonic was hoping that they can use this newest technology in James Cameron's upcoming film Avatar with all its glint Interest. The electronics company has made a deal with 20th Century Fox to guarantor the said movie according to twice. Panasonic will use the film which will invade movie theaters on December 18th. It is indeed their opportunity to promote televisions and Blu-Ray disc players to support 3-D.

Today’s 3-D technology uses a stereoscopic OLED display to create two alternating images with different angles. In this case, the viewer will wear a special set of glasses that blocks out one of the images from each eye, creating the illusion that the movie is popping out of the screen. It is indeed fascinating how technology focus on working with OLED not just in small gadgets but in big screens as well. So, I'm pretty sure that there will be a lot more to follow with OLED technology. In the meantime, fasten your seat-belt to be the first one to experience this!

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Matsushita Enters Mass Production of OLED TV in 2012 (http://www.oled-display.net/matsushita-enters-mass-production-of-oled-tv-in-2012)
25 August 2009


http://cache.gizmodo.com/assets/resources/2007/04/OLED21inch0.jpg


Matsushita Electric Industrial Co. from Japan wants to join forces for OLED Technology. Matsushita is already coming up with the plan for mass production of large 37 inch OLED TV by 2012. With their own line of OLED TVs it will be a tough competition to other flat screen TV manufacturers. Based on my information, Matsushita will be the first company to enter mass production of OLED-TV and to challenge Samsung in acquiring the highest share in the global flat TV market. According to Akira Kadota, spokeperson of Matsushita they have been quoted the aim of commercializing OLED TVs. At this point in time, Matsushita planned to launch the OLED TVs soon. Another much awaited OLED technology for us in the future. And let us hope for more...

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OLED TV lifespan doubled by new build tech (http://www.techradar.com/news/television/oled-tv-lifespan-doubled-by-new-build-tech-209275)
25 August 2009


http://mos.techradar.com/images/toshiba-oled-tv-728-75.jpg


The new breed of OLED televisions are, without a doubt, wondrous to behold, but the use of organic materials that degrade gives them a lifespan that's around 40 per cent less than a standard LCD screen. That, however, is no longer a concern - providing you buy a TV from Toshiba Matsushita Display Technology.

The joint venture between the two electronics heavyweights has come up with a new display that doubles the life of OLED screens by increasing the efficiency of the way they use emitted light.

Efficient emissions

A metal membrane inside the prototype 20.8-inch screen helps deliver light from polymers in the substrate out through the glass surface more efficiently than current OLEDs can manage.

The end result means the brightness can be halved while maintaining the same picture quality, which adds up to doubling the lifespan of screens using the new method.

An OLED TV like Sony's XEL-1 is rated at 30,000 hours - or eight hours a day for ten years - so it's clear that the Toshiba Matsushita approach will eliminate concern for all but the most thrifty of telly addicts.

http://www.oled-display.net/15-inch-amoled-tv-from-lg-display-review-and-photos

http://www.oled-display.net/sony-to-introduce-the-xel-2-oled-tv-at-the-ifa-2009

http://www.oled-display.net/no-xel-2-oled-tv-from-sony-at-ifa-2009

Smoothing the way to superior OLED displays (http://www.nanowerk.com/news/newsid=12352.php)
28 August 2009


http://www3.interscience.wiley.com/cgi-bin/fulltext/122485461/ncontent

Fig. 1

Electrospray-deposited polymer films can be used to make organic light-emitting diodes (OLEDs) with better characteristics than those made from spin-coated films, according to Yutaka Yamagata of the RIKEN Center for Intellectual Property Strategies, Wako, and colleagues. These researchers have used a novel dual-solvent concept to make the electrospray-deposited films smoother than before, thereby enabling the superior devices to be built ("Thin-Film Fabrication Method for Organic Light-Emitting Diodes Using Electrospray Deposition (http://dx.doi.org/doi:10.1002/adma.200900444)").

Organic light-emitting diodes are now entering the market place as screens for mobile phones and televisions (Fig. 1), and mass-production techniques are needed to simplify the manufacturing process and reduce costs and wastage.

Previous attempts to use the electrospray-deposition technique for OLED fabrication have failed to produce polymer films that compete with other fabrication techniques. Yamagata and colleagues decided to use a combination of two solvents to improve this technique, which uses a thin glass capillary with the polymer solution stored inside and a conductive wire inserted in it. When a high voltage is applied between this conductive wire and the OLED electrodes on the substrate, the solution sprays out of the capillary end as atomized droplets that are attracted to the substrate by electrostatic force. This means there is little solution wastage as the spray is highly directed.

They found that the first solvent evaporated rapidly after the atomization of the solution, leaving a small amount of the second solvent, which has a higher boiling point, in the droplets. When the polymer concentrations were finely tuned, the carefully chosen second solvent enabled the not-quite-dry atomized droplets to form a smooth, continuous film of high quality over the OLED electrode. Because the films dry quickly on the surface, it should be easy to fabricate multilayer devices without mixing of materials between layers.

From a series of comparative experiments, the researchers found that devices fabricated from electrospray-deposited films turned on at lower voltages and could support higher current densities than ones made from spin-coated films. At low voltages, the electrospray deposition also enabled higher pixel intensity.

“We have discovered a range of conditions using a two-solvent method that can make extremely smooth thin films using electrospray deposition,” says Yamagata. “Using this technology these devices could be manufactured as inexpensively as printing newspapers.”

Yamagata also notes that: “The advantage of using electrospray deposition is that we can fabricate both smooth films and nanostructured film using the same technology.” In the future he believes that this advantage “will also be useful in controlling the structure of organic semiconductor junctions for organic solar cells.”

LG 15" OLED Flick photostream (http://www.flickr.com/photos/lge/3863903197/in/set-72157622041660953)

http://i31.tinypic.com/1z34iad.jpg

LG has added some pictures to their flickr photostream, go check them out.

According to Oled-Info (http://www.oled-info.com/lg-will-start-selling-15-oled-tv-november-and-will-introduce-40-model-soon) the LG 15" OLED television will be up for sale in November and LG is promising a 40" version 'soon', the damn teases.

Looks like with SONY and Samsung side stepping OLED for now LG has surprised everyone by taking up their slack. Well, they certainly have one customer already. If the 15" is up to snuff I might pick it up for use as a monitor at work and I'll definitely be in line for a 40" whenever it should arrive.

According to Oled-Info (http://www.oled-info.com/lg-will-start-selling-15-oled-tv-november-and-will-introduce-40-model-soon) the LG 15" OLED television will be up for sale in November and LG is promising a 40" version 'soon', the damn teases.

Looks like with SONY and Samsung side stepping OLED for now LG has surprised everyone by taking up their slack. Well, they certainly have one customer already. If the 15" is up to snuff I might pick it up for use as a monitor at work and I'll definitely be in line for a 40" whenever it should arrive.

Samsung has a "production ready" 14" display, I don't know how is that considered "side stepping"...

Samsung has a "production ready" 14" display, I don't know how is that considered "side stepping"...

Production ready OLED products are a dime a dozen, I am sure SONY had their own 21"-30" production ready OLED all lined up for 2009 before economic pressure forced them to scrap their long drawn out plans for releasing it. I call it sidestepping when no matter how production ready a given OLED is deemed to be when never the less no actual product is ever produced and offered up for sale. What, after all, is the big difference for consumers between production ready and prototype when neither net tangible products for sale.

In 2007 there was the SONY 11" XEL-1, an actual purchasable product and now, two years later there is going to be the 4 inches larger LG 15" in Korea come november, those are the only two instances where OLED TV's were not sidestepped if you will. Both SONY and Samsung have products now at least on par with the LG but both have chosen to yet again side step them by not releasing them for an additional year because they deem them hard to sell.

It is particularly pathetic I think that SONY got everyones hopes up two years ago but the true successor to the XEL-1 is just only going to be released in a few months and by LG of all things.

I can't wait to see the 15" LG OLED!!! I wouldn't be surprised if this model will sell for less than the Sony XEL-1... :cool: I wonder which B&M retailers will actually sell this set in the states early next year (Magnolia AV & Best Buy)??? Perhaps the LG unit is a sign that other manufacturers will announce OLED TV products at IFA in a few days?

According to Oled-Info LG now has a specs page for the 15" here (http://www.lgdisplay.com/homeContain/jsp/eng/tech/tech320_j_e.jsp) and they do not look too good, in fact given my expectations they look pretty run of the mill. Not even over 100% NTSC gamut, which is strange, this looks like a second rate OLED product at least on paper that is.

Resolution: 1366 x 768
Width: 1.7 mm
16.7 million colors
Luminence: 200 cd/m2, peak: 440 cd/m2
Contrast: larger than 100,000 : 1.
Color Gamut (NTSC%) : larger than 87%
Response time : smaller than 0.01 msec
Interface : LVDS

According to Oled-Info LG now has a specs page for the 15" here (http://www.lgdisplay.com/homeContain/jsp/eng/tech/tech320_j_e.jsp) and they do not look too good, in fact given my expectations they look pretty run of the mill. Not even over 100% NTSC gamut, which is strange, this looks like a second rate OLED product at least on paper that is.

Resolution: 1366 x 768
Width: 1.7 mm
16.7 million colors
Luminence: 200 cd/m2, peak: 440 cd/m2
Contrast: larger than 100,000 : 1.
Color Gamut (NTSC%) : larger than 87%
Response time : smaller than 0.01 msec
Interface : LVDS

If those numbers are real I don't find anything wrong there. That color gamut is >100% sRGB, and certainly 100,000:1 of REAL contrast would be orders of magnitude better than any tv on the market.

If those numbers are real I don't find anything wrong there. That color gamut is >100% sRGB, and certainly 100,000:1 of REAL contrast would be orders of magnitude better than any tv on the market.

Don't forget that LG is marketing this as a television, not a monitor, so sRGB does not make sense to quote. In fact, most TV's, due to the way they process the image, make for terrible monitors, thought perhaps LG is going to be smart enough to realize that this thing is most likely going to be used for and focuses on those aspects of that display.

That being said it is going to be a cold day in hell a manufacturer is going to quote realistic contrast rations, if the norm today is 1.000.000:1 for the best LED backlight televisions then LG would no doubt rate a superior OLED display far above even that, but they chose a number being thrown around two years ago. Like I said, on paper it is not looking good.

This company, Riken Research, claims that they have a very cheap way of producing OLED's (http://www.rikenresearch.riken.jp/eng/research/5958). What do you experts here think.

This company, Riken Research, claims that they have a very cheap way of producing OLED's (http://www.rikenresearch.riken.jp/eng/research/5958). What do you experts here think.

Claims similar to that have been made almost non stop for the last 4 or so years and yet all that is to show for it so far is a 2500$ 11" TV by SONY. Recommendations are to administer a healthy dose of salt with any OLED advancement tidbit.

Don't forget that LG is marketing this as a television, not a monitor, so sRGB does not make sense to quote. In fact, most TV's, due to the way they process the image, make for terrible monitors, thought perhaps LG is going to be smart enough to realize that this thing is most likely going to be used for and focuses on those aspects of that display.

That being said it is going to be a cold day in hell a manufacturer is going to quote realistic contrast rations, if the norm today is 1.000.000:1 for the best LED backlight televisions then LG would no doubt rate a superior OLED display far above even that, but they chose a number being thrown around two years ago. Like I said, on paper it is not looking good.

Panasonic gives those 30k to 1 and 40k to 1 ratios, so they'd be the other company that does it. And those tv's don't even come close to that. Let's just see if the thing can do absolute black like the xel-1.

It says more than 100k:1. The number could be limited by measurement accuracy. Who cares, it will be the best 15" flat panel anyway.

It says more than 100k:1. The number could be limited by measurement accuracy. Who cares, it will be the best 15" flat panel anyway.

Way to go Sampo.

So it will make it a wonderful center piece, in a home theater system; for a family of Lilliputians, and of course their off axis viewing will be great.:)

Don't forget that LG is marketing this as a television, not a monitor, so sRGB does not make sense to quote. In fact, most TV's, due to the way they process the image, make for terrible monitors, thought perhaps LG is going to be smart enough to realize that this thing is most likely going to be used for and focuses on those aspects of that display.

That being said it is going to be a cold day in hell a manufacturer is going to quote realistic contrast rations, if the norm today is 1.000.000:1 for the best LED backlight televisions then LG would no doubt rate a superior OLED display far above even that, but they chose a number being thrown around two years ago. Like I said, on paper it is not looking good.

I still find 89% NTSC an acceptable color range for a new TV, specially taking into account that an OLED panel should be able to show any gradiation of color in the screen at the same time, regardless of the backlight... Note that some LCDs, may be able to display wider gamuts, that is, each pixel is able to do that, but once put together the color gamut and contrast relies on the backlight being applied at the moment, so effectively that color gamut numbers are quite unreal.

And, of course, contrast numbers can not be compared between LCD's and OLEDs. OLED is able to display a pitch black pixel next to a pitch white pixel so I don't know where those numbers came from, but I'm certainly sure the blacks will be better than in any other television of the market, regardless of the technology.

Sony XEL-1 has already been measured to have INFINITE contrast in a completely dark room, since the black is just a switched off pixel which emits zero light. So I don't see why this tv should be different.

Rec. 709(HD) represent only 72% of NTSC. Rec. 601(SD,DVD) is very similar. Both consumer standards have undersaturated colors when compared to film or digital cinema.

Way to go Sampo.

So it will make it a wonderful center piece, in a home theater system; for a family of Lilliputians, and of course their off axis viewing will be great.:)

<PalmToForehead>Ugg... you should know better than to make sarcastic remarks like that...</PalmToForehead> Go back to your plasma worship!

The IFA exhibit starts today folks. Anyone got a lead of the best site to go to for quality coverage of everything? Should be good for a thrill or two while we twiddle our thumbs for a few more years.

Eyes-on LG's 15-inch OLED TV makes us want to punch an LCD (http://www.engadget.com/2009/09/03/eyes-on-lgs-15-inch-oled-makes-us-want-to-punch-an-lcd/)

"Oh, and LG tells us that its 32- and 42-inch OLED panels are on schedule and due to be released sometime in 2010. Yes, 2010. No word on price but it's going to be tres, tres expensive."

Engadget has the 15" Eyes-on. 42" OLED next year.

First impressions: LG 15-inch OLED TV (http://www.techradar.com/news/television/hdtv/first-impressions-lg-15-inch-oled-tv-631871)
3 September 2009


http://mos.techradar.com//classifications/ifa2009/LG%2015inch%20OLED2-728-75.jpg


http://www.oled-display.net/images/lg-display/15-inch-amoled-tv-ifa-2009.jpg


http://mos.futurenet.com/techradar/classifications/ifa2009/LG%2015inch%20OLED-420-90.jpg


http://mos.futurenet.com/techradar/classifications/ifa2009/LG%2015inch%20OLED3-420-90.jpg


http://mos.futurenet.com/techradar/classifications/ifa2009/LG%2015inch%20OLED4-420-90.jpg


The fact that LG was to display its exciting new 15-inch OLED TV at IFA this year was one of the worst kept secrets in tech.

Currently the only OLED TV available is Sony's XEL 1 11-inch OLED TV which is both brilliant and hyper expensive.

So how does the 15-inch LG OLED TV compare? It's fair to say that LG's OLED TV is jaw droppingly pretty.

It's amazingly bright and rich with colour, and the contrast ratio looks miles better than any other 15-inch TV we have ever seen.

Unfortunately, there were absolutely no details given at the stand - and even in the LG press conference this afternoon there was absolutely no mention of OLED technology at all.

LG preferred to focus on its brand new LH9000 LED-backlit LCD TVs which have a stated contrast ratio of 3,000,000 to 1.

We managed to corner LG engineer, Jeong Woo Choi, on the stand and he told us that the 15-inch OLED TV has a tentative release date of December 2009.

We are very excited by this TV as it really is a fantastic bit of kit. It's impossibly thin as well – we didn't have a ruler and LG wouldn't tell us the exact thickness but it couldn't have been more than a two or three millimetres

And the most exciting thing of all is the fact that this 15-inch model is just a stepping stone to LG releasing a 32-inch model next year.

As proof of tech then, the 15-inch OLED is brilliant. But it doesn't do much to dispel the problem that the Sony TV has – it's just too small to be worthwhile.

The price, too, is likely to be even more extravagant than the Sony one. So unless you see one of these at a show or in a store you're unlikely to see one… ever.

However, the 32-inch model may be another story and we wait for it with heightened anticipation.

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Samsung show only 14-inch and 31-inch sizes OLED-TV at IFA-2009 (http://www.oled-display.net/samsung-show-only-14-inch-and-31-inch-sizes-oled-tv-at-ifa-2009)
3 September 2009


http://www.oled-display.net/images/samsung/samsung-oled-panels-ifa-2009.jpg


Samsung will show only the two prototype OLED TVs, which come in 14-inch and 31-inch sizes.
The 31-inch panel which come also with a contrast ratio of 1,000,000:1.

Technical Details

Samsung 14.1 inch WXGA

Resolution: 1366x768 pixel
Brigthness: 200cd
Color Gamut: NTSC 107%
Contrast Ratio: 1,000,000:1
Number of Colors: 1073M
Viewing Angle: Free
Thickness: 2.7mm
Samsung 31.1 inch FULL HD

Resolution: 1920x1080 pixel
Brigthness: 200cd
Color Gamut: NTSC 107%
Contrast Ratio: 1,000,000:1
Number of Colors: 16 Million
Viewing Angle: Free
Thickness: 8.9mm

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Interview with Sony about the development and mass production of OLED-TV (http://www.oled-display.net/interview-with-sony-about-the-development-and-mass-production-of-oled-tv)
3 September 2009


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Sony first became involved in OLED research around 1994. A growing number of organizations had established OLED R&D projects after the publication of a paper in 1987 describing a thin-film OLED device fabricated using vapor deposition. In this sense, Sony was a latecomer to this field. At the time, Trinitron was still Sony's core technology for display devices. Of course, the Company was also working on the development of next-generation flat-panel display devices and had established parallel projects focusing on various types of devices, including the Plasmatron (plasma addressed liquid crystal) and field emission display (FED) systems.

“Various systems were being tried at that time. It was as if they were in competition with each other. There was extensive debate on which technology would be the winner.”

Not everyone thought that OLED was likely to become a major future display technology, and the development of display devices based on OLED technology (http://www.oled-display.net/how-works-the-oled-technology) did not begin in earnest until 1998. Tetsuo Urabe was a member of the OLED display development team established that year.

Technology had already been developed to create light using OLED. However, Sony wanted to develop an OLED display for TV (http://www.oled-display.net/oled-television) use. This achievement would necessitate the creation of a screen made up of large numbers of picture elements. Sony decided to use an active matrix system based on thin-film transistor (TFT) technology, which is also used in LCD panels. The consensus view at the time was that it would be very difficult to apply this technology to the development of an OLED display. However, Urabe and his colleagues began to develop an active matrix driver for an OLED-based system.

“There was growing interest in the concept of an OLED system with an active matrix driver. It was seen as a technology for the future. Sony was a latecomer to OLED R&D, but we were among the first to start developing the technology for use as a television display device.”

Successful Development of 13-inch OLED Display in 2001

The first problem in using an active matrix system to drive an OLED display was variation in pixel brightness. This variation results from differences in the characteristics of the TFTs positioned in each pixel.

“In an OLED display, the TFTs drive the luminescence themselves. This means that any variation in TFT characteristics end up as variations in the brightness of individual pixels.”

Since creating TFTs with identical characteristics is virtually impossible, Urabe's team decided to focus instead on the development of a method to compensate for this. After studying several possible solutions, they decided to use current mirror circuits.

Current mirror circuits consist of two circuits that are mirror images of each other. When a current flows in one of the circuits, the same exact current will flow through the other one. These circuits were attached to neighboring pixels. Provided both pixels in each pair have the same TFT characteristics, there will be no variation in pixel brightness between them. Using this concept, Urabe's team was able to overcome the brightness variation problem by arranging large numbers of pixels symmetrically. In 2001, they succeeded in developing the world's first 13-inch active matrix OLED display. At the time, it was the largest in the world.

Challenges in Establishing Mass-production Technology

Sony had developed a 13-inch OLED display, but it was still only a prototype. The first challenge on the path to commercialization would be to extend the life of the product. When first developed, the display was completely useless as a commercial product since its brightness declined dramatically in just two or three days. There were countless additional challenges, including the choice of organic materials and drive system and the method used to stack thin organic layers. The development team also had to consider the structure of the organic layers, and the method used to isolate the materials from the external environment. Urabe and his team solved each of these problems in turn by conducting a massive program of testing and evaluation. The work was so intense that team members sometimes fought over access to larger pieces of testing equipment.

The next challenge was the establishment of production technology. Before OLED products could be launched commercially, Sony needed a production technology able to mass-produce panels without any loss of quality. One of the most difficult tasks was reducing the number of defective pixels. The organic film in an OLED panel is only a few hundred nanometers thick. This extremely thin layer is sandwiched between electrodes, and the presence of even a minute particle of dust can prevent the current from flowing to the organic film, resulting in a dead pixel. To prevent dead pixels, it's necessary to eliminate dust, so the team began to remove all possible sources of dust from the production line. They also sought to minimize the effects of dust by increasing the thickness of the film as much as possible without compromising its characteristics. Another solution involved the use of lasers to repair any dead pixels discovered after production.

This process culminated in 2004 with the launch of the Courier PEG-VZ90, the first PDA with an OLED panel.

Enhancing Japan’s Competitiveness with OLED

The XEL-1, the world’s first OLED television, was launched on schedule in December 2007. Urabe recalls the supreme happiness he felt at the shipment ceremony at Sony EMCS Corporation’s Inazawa TEC, where the XEL-1 is manufactured.

“People from various departments were involved in the XEL-1 project. They were all at the facility for the shipment ceremony. That was our greatest moment, because all of us felt the satisfaction of having created a new product that was a world’s first.”


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This is the first time in 12 years that Sony has won an Okochi Memorial Award. According to Urabe, the real significance of the award will only become apparent when OLED technology matures into a key product category for Sony and a driving force for Japan’s competitiveness.

Sony is still developing OLED technology. Current goals are to create large-screen OLED televisions at a commercially viable cost.

Super Top Emission Microcavity Structure

In addition to the unique OLED panel structure described above, Sony's Super Top Emission technology (Fig. 4) utilizes a microcavity structure and color filters to simultaneously enhance color purity, attain higher contrast and achieve lower power consumption.

The microcavity structure utilizes light resonance effects between the two electrodes. Red, Green and Blue all have different light wavelengths. Therefore the thickness of the organic film corresponding to each color is adjusted to produce the spectral peak wavelength (the optimum light) for each color. Only light that possesses the same wavelength as the distance between the "cathode electrode semitransparent film" and the "anode electrode reflective film" resonates. Light wavelengths that do not match are weakened. As a result, the spectrum of the extracted light is sharpened while brightness and color purity are enhanced. This ensures the strongest light from each color.

In conventional panels, a circular polarizer (retardation film and polarizer) is installed on the panel surface to prevent the reflection of ambient light. However this structure also reduces the amount of electroluminescent light emitted by less than half. Sony rejected the circular polarizer and instead created a microcavity structure combined with color filters. This both prevents the reflection of ambient light and enhances color purity. The results are lower power consumption with longer life and advanced picture quality.

Figure 6 shows the effects of reducing ambient light achieved by the microcavity structure and the color filters. When the organic layer optical path length is matched to the wavelength of green electroluminescent light, the internally generated green light is strengthened, while the green component of the ambient reflected light is cut. At the same time, the color filter removes non-green colors from the ambient reflected light. High contrast can therefore be achieved without using a circular polarizer, and power consumption is reduced by half.


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Thanks to Sony.net (http://www.sony.net/SonyInfo/technology/interview/sp02.html) for this information!

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LG to release 32-inch OLED TVs in 2010 (http://www.techradar.com/news/television/hdtv/lg-to-release-32-inch-oled-tvs-in-2010-631835)
3 September 2009


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TINY TELLIES: LG's 15-inch OLED TVs on show at IFA

LG will launch a 32 inch OLED TV as early as 2010. The electronics manufacturer also confirmed a release date for the much mooted 15-inch OLED TV which is on display at this year's IFA show in Berlin.

At the LG stand, LGs Korean Engineer Jeong Woo Choi told TechRadar that LG is not too far from putting 32-inch OLED TVs into production, and that they would go on sale in Europe in 2010.

"The 15-inch OLED is to be put on sale in December this year," said Choi, "and we aim to launch our 32-inch model at some point next year".

It had previously been reported (http://www.techradar.com/news/television/lg-plans-32-inch-oled-tv-for-2012-617276) that LG had decided 2012 would be the year for 32 inch OLED screens while Digitimes reported in April that LG was planning 32 inch OLED TVs for 2010, but this seems to have now been confirmed by LG itself.

OLED technology offers an alternative to LED backlit LCD TVs. While the the screens are brighter and thinner than current LCD TVs, no manufacturer has been able to make large sized OLED panels with high enough yields to make them economical.

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A biological process holds the key to future OLED TVs (http://www.oled-info.com/biological-process-holds-key-future-oled-tvs)
3 September 2009


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Peptronics green OLED prototype

Peptronics (http://www.oled-info.com/peptronics) is an Israeli company, working on Polymer OLED materials. Their idea is to use a biological-based method to make the OLEDs. In the human body, we have 20 amino acids, used as building blocks for proteins. In the same way, they have made several "OLED building blocks", which can be used to create OLED materials, using Peptronic's peptide based technology.

There are two types of OLEDs today: Small Molecules and Polymer based. Small Molecules are efficient and relatively easy to make, and are used in small displays today. But it is difficult to print them, and it is not easy to create a large panel using other methods. Polymer OLEDs are easily printable, and thus can be used to make large TVs - but their lifetime is short and they are less efficient.

YouTube: Peptronics OLED prototype (http://www.youtube.com/watch?v=jxLetJ7yApQ&fmt=18)

Peptronics say that it will be possible to print cheap, large OLED TVs using their materials - which in fact will be printable (because they are polymer based), but also efficient - so it is the best of both worlds. The new materials can also be used for OLED lighting.

Peptronics are currently working on the finding the best "building-blocks" and creating numerous polymers from these building blocks using high throughput parallel synthesis. They then hope to sell their materials (or material-making systems).

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10 things you need to know about OLED (http://www.techradar.com/news/television/hdtv/10-things-you-need-to-know-about-oled-631848)
3 September 2009


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OLED technology is destined to replace LCD

The appearance of LG's 15-inch OLED TV at IFA 2009 is a small (but significant) step on the road to replacing LCD, LED and plasma technology.

It's still early days, but thinner, crisper, brighter and more energy efficient TV screens are closer than you think.

Not sure what OLED is? Wondering why you'd want an OLED TV when all the chatter at IFA is about LED and 3D TV? Here's OLED explained...

1. What is OLED?

Pioneered by Kodak back in the 1980s, Organic Light Emitting Diode (OLED) technology is poised to oust LCD just as LCD stuck the knife into the CRT.

An OLED panel consists of a layer of organic, light-emitting material sandwiched between two conductors (an anode and a cathode). This diode layer emits light when an electric current is passed through it. A TV panel features thousands of OLED pixels mounted in rows and columns onto a TFT array. This is referred to as an Active Matrix OLED or AMOLED display.

2. No backlighting required

Because the organic material used in an OLED panel emits its own light when charged, there's no need for a separate backlight. In comparison, LG's newly announced LH9000 LED TV relies on backlighting technology that "uses hundreds of LED elements to individually brighten and dim the image on the screen."

3. OLED outperforms LCD and LED


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OLED TVs have several advantages over traditional LCD televisions. For starters, the lack of a backlight means that OLED TVs can be extraordinarily thin – the Sony XEL-1, for example, is only 3mm thick; Sony's prototype 21-inch OLED TV is a mere 1.4mm.

OLED pixels can also be turned on and off much quicker, giving OLED TVs a faster refresh rate, greatly improved contrast and unparalleled brightness. OLED panels are also far more energy efficient.

4. Sony, LG and Samsung love OLED

Some of the biggest consumer electronics manufacturers have jumped onto the OLED bandwagon. The Sony XEL-1 was the first OLED TV to become commercially available and Sony had a 27-inch prototype at this year's CES.

LG has quietly unveiled its own 15-inch model (reportedly available in December), while Samsung has also shown some love for the technology – it has already demoed a 31-inch model and a 40-inch screen.

5. OLED is available now (albeit in small sizes)

While the XEL-1 is currently the only OLED TV available, OLED technology is already being used in mobile phones, media players and digital cameras.

You'll find an AMOLED display in the Samsung Jet, the new Sony Ericsson Xperia X2 and X-Series Walkman, the Sansa Clip+, Nikon Coolpix S70, the OQO Model 2+ and forthcoming Zune HD. There's even an OLED keyboard – the OCZ Sabre OLED Keyboard has 9 programmable OLED keys.

6. OLED is expensive

Consider this: instead of plunking down £2,500 for an 11-inch Sony XEL-1, you could buy a 42-inch Philips 42PFL9664 or a classy Pioneer PDP-5090 and still have change for accessories.

Manufacturing costs are the main reason why we're only seeing commercial OLED displays in small sizes. Is this why Sony is delaying its own OLED launches?

The worry for OLED is that the delay in producing decent-sized TVs gives LED technology more time to bed into the public consciousness. Worse still, the current buzz around Full HD 3D TV could also dilute OLED's advantages.

7. OLED can be 'flexible'


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Dubbed FOLED (Flexible OLED), Sony and Samsung both demoed a bendy version of the technology in 2008. FOLED displays could be wrapped around pillars in shopping malls or used to add bigger, roll-up screens to mobile phones. Kodak has also shown off a flexible OLED prototype, with the added advantage that it can be used underwater.

8. OLED can be 'transparent'

Yes, there's also an acronym for this – TOLED. Boffins have envisaged that transparent OLED panels could be used to add TV screens to windows, as HUDs in future cars and to create stylish, sci-fi displays that look like sheets of glass.

There are also military applications to consider. Defence Update suggests lightweight PDAs and wearable "display sleeves". Other applications, they say, could include "automotive instrument panels, windshield displays and visor mounted displays".

9. There are other types of OLED

There are other variations of OLED technology. AMOLED (Active Matrix OLED) is the most commonly used OLED technology in high resolution panels. PMOLED (Passive Matrix OLED) offers a lower resolution and is better suited to displaying text and icons.

The glow provided by PhOLED (Phosphorescent OLED) device could provide an eco-friendly alternative to traditional lighting. While SOLED (Stacked OLED) uses a revolutionary new pixel layout that literally 'stacks' the red, green, and blue subpixels on top of one another. The result? Even better colour depth.

10. The disadvantages of OLED

OLED is viewed as the natural successor to LCD, but that's not to say it's a perfect technology. OLED displays are expensive to manufacture, especially in large sizes. Decent-sized OLED TVs aren't expected to be on sale until late 2010 or 2011.

There are also concerns about the lifespan of OLED displays. This perceived lack of reliability combined with sky-high price tags could mean that we might not see an affordable OLED TV before 2015. But we'd love to be proved wrong.

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Eyes-on LG's 15-inch OLED TV makes us want to punch an LCD (http://www.engadget.com/2009/09/03/eyes-on-lgs-15-inch-oled-makes-us-want-to-punch-an-lcd/)
3 September 2009


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What can we say -- it's a near final build of LG's 15-inch OLED TV (http://www.engadget.com/2009/08/29/lgs-15-inch-oled-screen-is-still-drop-dead-gorgeous-likely-pri/) that's set to go production in Korea before the baby New Year can suckle at the big one-oh. We could say it's beautiful, that even motion looked good pushing genuine blacks on this razor thin panel. But we wouldn't want to rub your noses in the fact that we're at IFA and you're not. Perhaps this will make you feel better: by the time it makes it Stateside in February or March it'll be carrying a price tag right around $2,500. Really, but it's Wireless TV-capable and that's gotta be worth something.

Oh, and LG tells us that its 32- and 42-inch OLED panels are on schedule and due to be released sometime in 2010. Yes, 2010. No word on price but it's going to be tres, tres expensive.


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Groups partner for OLED printing materials (http://www.eetimes.eu/scandinavia/219700023?cid=RSSfeed_eetimesEU_scandinavia)
8 September 2009

LONDON — OLED specialist Novaled AG (Dresden, Germany) and Plextronics (Pittsburgh, PA.), which focuses on conductive organic inks, are teaming to develop doped and solution processed organic materials for high performance printing of OLED devices.

Plextronics organic conductive ink technology -- dubbed Plexcore OC-- will be combined with Novaled's organic dopant technology to develop advanced Hole Injection Layer (HIL) technology for OLEDs.

The companies will target these materials for use with solution processed polymer and small molecule emitters, as well as with vacuum deposited small molecule emitters.

They aim to offer a solution processed HIL with the same performance as a Novaled doped small molecule HIL deposited in a vacuum process.

The Novaled doped HIL is part of the Novaled PIN OLED technology, which has demonstrated some of the highest power efficiency together with a long lifetime.

The companies will co-market the Plexcore OC inks that result from the partnership.

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Novaled and Plextronics announcing partnership to develop OLED materials (http://www.oled-display.net/novaled-and-plextronics-announcing-partnership-to-develop-oled-materials)
8 September 2009

Novaled AG, a leader in energy saving and long living OLEDs (Organic Light Emitting Diodes), and Plextronics, Inc., an international company that specializes in conductive organic inks for printed lighting, solar and other electronics, announced today that they have agreed to jointly develop doped and solution processed organic materials for OLED applications. OLED technology is expected to become a major ingredient of flat displays and drive a new era lighting innovation with its flexible design and energy efficiency advantages.

The collaboration agreement specifies that the companies will combine their respective technologies to develop an advanced solution processible Hole Injection Layer (HIL) technology for OLEDs. By leveraging Plextronics’ organic conductive ink technology and Novaled’s organic dopant technology, the companies will target these advanced HIL materials for use with solution processed polymer and small molecule emitters, as well as with vacuum deposited small molecule emitters. Novaled and Plextronics aim to offer a solution processed HIL with the same performance as a Novaled doped small molecule HIL deposited in a vacuum process. The Novaled doped HIL is part of the Novaled PIN OLED® technology, which has demonstrated some of the highest power efficiency together with a long lifetime.

Plextronics and Novaled will co-market Plexcore® OC inks that incorporate Novaled dopant materials.

“Novaled is well-known for its power efficient OLED technology and is considered to be a world leading supplier of doping material,” says Andrew Hannah, President and CEO of Plextronics. “We expect that the combination of Plextronics’ conductive ink for OLED – Plexcore® OC – and Novaled’s doping technologies will enable the high performance printing of OLED devices.”

“Plextronics is an international leader in organic ink”, adds Gildas Sorin, CEO of Novaled. “It is Novaled’s strategy to partner with key industry players, like Plextronics, in order to enlarge our business offering for customers. Together with Plextronics, we are able to introduce the Novaled PIN OLED® technology to the world of printed electronics.”

YouTube: LG 15" OLED TV at IFA 2009 video (http://www.youtube.com/watch?v=qpbBWEk-sOY&fmt=18)

YouTube: LG 15" OLED TV at IFA 2009 video (http://www.youtube.com/watch?v=qpbBWEk-sOY&fmt=18)

I haven't seen any good review of the LG 15" OLED yet? Has anybody said something about motion handling, trails or any flaw?

As I see this TV has a 100% duty cicle unless XEL-1 since no flicker is seen in the video recordings, am I right?

OLED TVs off to a Slower Than Expected Start (http://www.pcworld.com/article/171718/oled_tvs_off_to_a_slower_than_expected_start.html)
10 September 2009

When Sony launched the world's first OLED (organic light emitting diode) television in late 2007 it seemed like a new era in flat-panel TV was beginning. True wall-hanging TVs just a few millimeters thick would finally be realized and those TVs would deliver crisp, colorful pictures that made current LCDs look almost dull by comparison.

Never mind that the 11-inch TV cost over US$2,000 -- new technology is always expensive at first and gets cheaper, right? Pushing the feeling that technology was quickly progressing, Sony also showed a 27-inch prototype at the same time, and within a few months Samsung took the wraps off prototypes of its own.

Sony CEO Howard Stringer, on stage in the U.S. in May 2008, got caught up in excitement for the coming OLED age and promised (http://www.pcworld.com/businesscenter/article/146419/sonys_stringer_promises_27inch_oled_tv_fairly_soon.html) the launch of the 27-inch model commercially within a year. It's now been a year and three months since Stringer made his prediction but there have been no new OLED TVs from Sony.

The absence of a new model has highlighted not just Sony's slipping schedule but that of the industry as a whole. Samsung has yet to launch its OLED TV and all eyes are now on LG Display, which had a 15-inch prototype at this year's CES and said it would ship (http://www.pcworld.com/article/156562/lg_display_on_verge_of_launching_15inch_oled.html) about now.

OLED screen makers are facing a couple of challenges,said Jim Masuda, director of display market research at iSuppli in Tokyo. The first is technical.

Sony launched an 11-inch OLED TV not because the market was demanding a small television but because mass production at typical TV sizes, those between 20 inches and 50 inches, is still difficult with OLED. The screen technology has proved difficult to scale so while it's in common use in cell phones and music players it isn't being mass-produced at larger sizes.

Screen life is also an issue.

"Companies are now looking at large-size OLEDs of around 40 inches but it's uncertain how they will produce them," said Masuda. One hurdle is applying the organic material from which light is emitted in an even manner across the screen. An uneven coating will mean differences in display brightness and that's obviously no good for a television.

The companies are experimenting with several competing material application technologies, including vapor deposition and ink-jet printing. There are also different organic compounds that can be used and a lot of work is going into studying those. Sony and LG are both working with Japan's Idemitsu while Panasonic has tied up with Sumitomo Chemical.

Even when the technical problems are solved, there's the issue of making the screens cheap enough to compete with LCD.

"After [Sony] introduced the 11-inch OLED all of the TV makers were researching how to make larger sets," said Masuda. "In the meantime LCD prices were dropping drastically and if an OLED TV is introduced it must be price competitive."

Oversupply has been affecting LCD panel prices for most of the last year and the problem was compounded by lower demand from TV makers after consumers cut back on spending due to the global recession. The average price of a 32-inch LCD panel fell from US$335 in January 2008 to around $200 at the end of the year, according to DisplaySearch.

Sony's first set was able to command a high price because its OLED TV was first to market and found customers among early adopters, companies and retailers looking to impress visitors and curious competitors in the TV business.

But it was never destined for the mass market. The production line can only handle up to 2,000 sets per month and hasn't been expanded since. Sony won't comment on actual production although only around 1,000 OLED TVs were sold in the last three months of 2008, according to an estimate from DisplaySearch.

However LCD panel prices have recently begun to rise, reducing some of the pricing pressure for the time being.

There were no new OLED TVs at last week's IFA electronics fair in Berlin, so the next major OLED TV announcement could come in October at Tokyo's Ceatec fair. Sony used that show in 2007 to launch its XEL-1. Another possible OLED TV launchpad could be CES 2010 in Las Vegas in January, when the world's major consumer electronics makers come together.

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Has a Startup Cracked the OLED Problem? (http://www.greentechmedia.com/articles/read/has-a-start-up-cracked-the-oled-problem/)
11 September 2009


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Liquid to solid to gas and back to solid.

If startup Kateeva (http://www.kateeva.com/) is correct, a more elaborate version of that recipe might transform organic light emitting diodes (OLEDs) from a niche market into a mainstream technology for TVs, computer screens and lights.

The company has devised a method for depositing the light-emitting organic materials with inkjet printers and a micro-dryer called a T Jet (for thermal jet) along with proprietary inks that effectively will let manufacturers employ Gen 8.5 and larger substrates – which measure more than 6 feet a side – to produce OLEDs.

OLEDs are currently made on Gen 3.5 substrates, which measure 61 centimeters by 72 centimeters, hardly big enough for that 50-inch screen.

In four years or more, OLED TVs made on Kateeva's formulas could cost about 70 percent of what it would cost to build a standard LCD TV and even less than an LCD-LED TV, asserted Conor Madigan, a co-founder and the CEO. Such TVs would use a fraction of the power and contain half of the components.

"By 2013, OLEDs will really be established at a volume manufacturing level. They [TV manufacturers] see a market where small margins rule and higher costs lose," he said. "The technology scales gracefully."

Like algae biodiesel, carbon nanotubes and electric cars, OLEDs are miracle items that more people read about than actually own. OLEDs are thin, flexible sheets of materials that emit their own light (http://www.greentechmedia.com/articles/read/plextronics-bags-14m-for-organic-led-solar/). Researchers at USC and Princeton have published reports stating that OLEDs can conceivably convert nearly 100 percent of the power injected into them into light.

In the end, that could mean TVs or lights a few millimeters thick that weigh a fraction of their contemporaries, cost less and don't sport bulbs that generate heat and break. OLED TVs and lights could even be transparent, so homeowners could replace windows with them.

Nokia, Dell, General Electric, Sylvania and others have all pledge to adopt them. Proponents say it could be a $100 billion market in a few years with $4.5 billion coming from lighting alone (http://www.eetimes.eu/industrial/210603877).

But, oops, reality. Producing OLEDs remains expensive and problematic. Sony released the first OLED TV, the XEL-1, in 2007. It measured 11-inches in diameter and sold for $2,500. Two years later, the XEL-1 still measures 11-inches across and sells for $2,500. Panasonic, Sharp, Hitachi (http://news.cnet.com/Picture-fuzzy-for-organic-thin-TVs/2100-7353_3-6225133.html?tag=mncol) and others have said they want to produce OLED TVs, but in the hazy future when manufacturing issues can be resolved. LG will release an OLED TV soon, but it measures only 15 inches.

"It will be a while. All of the same issues that have existed for the last couple of years-stability of manufacturing, scaling to large size-still exist," said David Steel, senior vice president of marketing at Samsung Electronics.

Sylvania sells an OLED lamp, for $10,000. The only mass market for OLEDs right now is for screens for high-end phones.

The dilemma arises largely from how OLEDs are manufactured. A substrate inside of a vacuum deposition chamber is covered with an intricately patterned mask. Chemical gases injected into the chamber coat the exposed portions of the substrate and, when they solidify, become circuits. After several mask layers, the light emitting pixels come into being.

Unfortunately, the mask can only get so big. The further away a mask feature is from the source of the gas, the odds increase that the pixel will contain defects. The z dimension, or thickness, of the mask can also distort.

To this end, some companies have tried lasers and inkjet printing (http://www.greentechmedia.com/articles/read/epson-enables-low-power-oled-tvs/). While inkjets allow the source of materials to be placed in close proximity to mask features, inkjets can be inaccurate for electronics printing and one layer can bleed into the next.

"Each layer has to be insoluble to the next," Madigan said.

Kateeva gets around this problem with the T Jet, which sits between the inkjet nozzles and the substrate. The material is first heated to 100 Celsius to evaporate the carrier liquids. The remaining solids then get heated to 300 Celsius, turned into a gas, and deposited onto the substrate, where it solidifies.

In a sense, it's similar to conventional OLED manufacturing, but the material is deposited in closer proximity. Larger substrates mean cheaper (and larger) TVs and other products because more displays essentially get manufactured at the same time.

Although the company will sell equipment, approximately 70 percent of its revenue could come from the inks, according to Sass Somekh, a former chip equipment exec turned VC at Musea Ventures. (Somekh co-founded Kateeva and invested in it along with Sigma Partners and Varian.) Each customer will likely demand its own nuanced tweak on the materials, but that's how the TV industry works today: Most manufacturers buy their liquid crystal from Merck. Some of the company's employees hail from Applied Materials and other equipment vendors.

The first big test will come in the second quarter when Kateeva ships prototype systems for processing Gen 3.5 substrates. Bigger ones will follow.

Maybe OLED won't make it to large screens. Maybe it will be too expensive to make. Maybe it can't find its longevity. Maybe this will happen:

http://www.technologyreview.com/computing/23294/

http://www.technologyreview.com/energy/22810/

Sounds like more good news to me.

The LG 15" OLED TV will cost around 2,500$-3,000$ (http://www.oled-info.com/lg-15-oled-tv-will-cost-around-2500-3000)
15 September 2009


http://www.oled-info.com/files/images/lg-15-inch-oled-tv-front.preview.jpg


We got word from a senior manager from LG Electronics that says that while the 15" OLED TV's price hasn't been decided yet, it will be in the range of 2,500$-3,000$ in Korea (due to launch in November).

Obviously this is a lot of money for a 15" TV. But it's about the same as Sony's 11" XEL-1 (which still costs 2,500$ in the US), so you get almost 40% more screen for the same money. Also this is the price for Korea, hopefully it will be lower when it launches worldwide in 2010.

The 15" OLED TV will have a 1366x768 resolution, 100,000:1 contrast ratio and it'll be only 1.7mm thick.

How long do you guys think it'll take for OLED to increase in size and come down in price enough to actually compete with LCDs and plasmas? I'd guess it'd be several more years, but I wanted to see everyone else's opinion.

How long do you guys think it'll take for OLED to increase in size and come down in price enough to actually compete with LCDs and plasmas? I'd guess it'd be several more years, but I wanted to see everyone else's opinion.

4.5 years for a $3000 50" OLED

Maybe never for all we know.

How long do you guys think it'll take for OLED to increase in size and come down in price enough to actually compete with LCDs and plasmas? I'd guess it'd be several more years, but I wanted to see everyone else's opinion.

We should have better info to predict "how long" after CES 2010. I think we'll see a 27"/30" OLED TV out by the end of 2010... based off of the last DisplaySearch road map. So I'm guessing 3 more years till we get to a ~46" size...

OLED is becoming SED...